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9 tháng 7 2024

x + 2xy -2y -1 = 5-1

x(2y+1) - (2y+1) = 4

(x-1).(2y+1)=4

Vì đề không nói x/y thuộc N hay Z nên cho tam số tự nhiên nhé :)

Vì 2y+1 là số lẻ, mà 2y+1 thuộc ước của 4 ⇒2y+1=1⇒y=0

⇒x-1=4⇒x=5

.VuxBachs.

8 tháng 1 2018

bạn nói vậy ko ai biết đâu

9 tháng 1 2018

Đố vui mà ^^

Living in the country is something that people from the city often dream about. However, in reality, it has both its advantages and disadvantages. There are certainly many advantages to living in the country. First of all, you can enjoy peace and quiet. Moreover, people tend to be friendlier and more open. A further advantage is that there is less traffic, so it is safer for young children. However, there are certain drawbacks to life outside the city. Firstly , because there are fewer people,...
Đọc tiếp

Living in the country is something that people from the city often dream about. However, in reality, it has both its advantages and disadvantages.
There are certainly many advantages to living in the country. First of all, you can enjoy peace and quiet. Moreover, people tend to be friendlier and more open. A further advantage is that there is less traffic, so it is safer for young children.
However, there are certain drawbacks to life outside the city. Firstly , because there are fewer people, you are likely to have fewer friends. In addition, entertainment is difficult to find, particularly in the evening. Furthermore, the fact that there are fewer shops and services means that it is harder to find work. As a result , you may have to travel a long way to work, which can be extremely expensive.
In conclusion, it can be seen that the country is more suitable for some people than others.On the whole , it is often the best place for those who are retired or who have young children. In contrast , young, single people who have a career are better provided for in the city.

2
22 tháng 7 2018

ko biết đề là gì nên mk dịch ra nha

Sống ở nông thôn là điều mà mọi người từ thành phố thường mơ ước. Tuy nhiên, trên thực tế, nó có cả lợi thế và bất lợi của nó.
Chắc chắn có nhiều lợi thế để sống ở nông thôn. Trước hết, bạn có thể tận hưởng hòa bình và yên tĩnh. Hơn nữa, mọi người có xu hướng thân thiện hơn và cởi mở hơn. Một lợi thế nữa là ít xe cộ, vì vậy nó an toàn hơn cho trẻ nhỏ.
Tuy nhiên, có những hạn chế nhất định đối với cuộc sống bên ngoài thành phố. Thứ nhất, bởi vì có ít người hơn, bạn có thể có ít bạn bè hơn. Ngoài ra, giải trí khó tìm, đặc biệt là vào buổi tối. Hơn nữa, thực tế là có ít cửa hàng và dịch vụ hơn có nghĩa là khó tìm việc hơn. Kết quả là, bạn có thể phải đi một chặng đường dài để làm việc, điều này có thể cực kỳ tốn kém.
Tóm lại, nó có thể được nhìn thấy rằng nông thôn là phù hợp hơn cho một số người hơn những người khác. Trên toàn bộ, nó thường là nơi tốt nhất cho những người đã nghỉ hưu hoặc những người có con nhỏ. Ngược lại, những người trẻ tuổi, đơn thân có nghề nghiệp được cung cấp tốt hơn trong thành phố.

6 tháng 8 2022

Sống ở nơi đất khách quê người là điều mà những người dân thành phố thường mơ ước. Tuy nhiên, trên thực tế, nó có cả mặt lợi và mặt hại.
Chắc chắn có nhiều thuận lợi để sống trong nước. Trước hết, bạn có thể tận hưởng sự yên bình và tĩnh lặng. Hơn nữa, mọi người có xu hướng thân thiện và cởi mở hơn. Thêm một ưu điểm nữa là ít xe cộ qua lại nên an toàn hơn cho trẻ nhỏ.
Tuy nhiên, có những mặt hạn chế nhất định đối với cuộc sống bên ngoài thành phố. Thứ nhất, vì có ít người hơn, bạn có khả năng có ít bạn bè hơn. Ngoài ra, rất khó tìm thấy các hoạt động giải trí, đặc biệt là vào buổi tối. Hơn nữa, thực tế là có ít cửa hàng và dịch vụ hơn đồng nghĩa với việc khó tìm việc hơn. Kết quả là, bạn có thể phải đi một quãng đường dài để làm việc, điều này có thể cực kỳ tốn kém.
Tóm lại, có thể thấy đất nước này phù hợp với một số người hơn những người khác, nhìn chung, nó thường là nơi tốt nhất cho những người đã nghỉ hưu hoặc có con nhỏ. Ngược lại, những người trẻ tuổi, độc thân có sự nghiệp được chu cấp tốt hơn ở thành phố.

27 tháng 5 2019

Choose the best option for each numbered blank

Alk five senses are important to us, but the two most important senses are (1)....PROBABLY... the sense of sight and the sense of hearing. Blind and deaf people must (2)...FIND... life difficult because they are unable to do (3)...THINGS.... that the rest of us can do naturally. People who (4)....LOSE.. their sense of taste can not enjoys food as (5)..FULLY.... as they used to, whilst (6).MEN....... who have no sense of smell can not realize; for example, when gas is (7)...LEAKING.... or when food has gone (8)..OFF.....

In addition to our physical senses, (9)....IT.. is a great help in life to have sense of humour, especially when things go wrong, and to have (10) sense OF HUMOR, something which can not be learned from books

16 tháng 10 2019

All five senses are important to us, but the two most important senses are likely the sense of sight and the sense of hearing. Blind and deaf people must find life difficult because they are unable to do things that the rest of us can do naturally. People who lose their sense of taste can not enjoy food as well as they used to, whilst men who have no sense of smell can not realize, for example , when gas is leaking or food has gone out. In addition to our physical senses, which is a great help in life to have sense of humour, especially when things go wrong, and to have common sense, something which can not be learned from books

To many people, their friends are the most important things in their life. Really good friends (1)___ the good times and the bad times, help you when you have got problems and never turn their backs on you. Your best friend may be someone you have known all your life, someone you have grown up with and been through lots of (2)_____ and downs with. There are all sorts of things that can (3)______ about this special relationship. It may be the result of enjoying the same activities, having the...
Đọc tiếp

To many people, their friends are the most important things in their life. Really good friends (1)___ the good times and the bad times, help you when you have got problems and never turn their backs on you. Your best friend may be someone you have known all your life, someone you have grown up with and been through lots of (2)_____ and downs with.

There are all sorts of things that can (3)______ about this special relationship. It may be the result of enjoying the same activities, having the outlook on life or  sharing experiences. Most of us have met  someone that we have immediately felt relaxed with as if we had known them for  years. (4)_______, it really takes you years to get to know someone well enough to consider your best friend.

To the majority of us, this is someone we trust completely and who understands us better (5)______ anyone else. It is the person you can turn to for impartial advice and a shoulder to cry on when life gets you down.

Điền vào số 5

A. as

B. than

C. most

D. much

1
2 tháng 1 2018

Đáán B

Gii thích: Ta xác định đượđây là so sánh hơn nh “better.”

Giúp mình nha! Living in the country is something that people from the city often dream about. However, in reality, it has both its advantages and disadvantages. There are certainly many advantages to living in the country. First of all, you can enjoy peace and quiet. Moreover, people tend to be friendlier and more open. A further advantage is that there is less traffic, so it is safer for young children. However, there are certain drawbacks to life outside the city. Firstly , because there...
Đọc tiếp

Giúp mình nha!

Living in the country is something that people from the city often dream about. However, in reality, it has both its advantages and disadvantages.
There are certainly many advantages to living in the country. First of all, you can enjoy peace and quiet. Moreover, people tend to be friendlier and more open. A further advantage is that there is less traffic, so it is safer for young children.
However, there are certain drawbacks to life outside the city. Firstly , because there are fewer people, you are likely to have fewer friends. In addition, entertainment is difficult to find, particularly in the evening. Furthermore, the fact that there are fewer shops and services means that it is harder to find work. As a result , you may have to travel a long way to work, which can be extremely expensive.
In conclusion, it can be seen that the country is more suitable for some people than others.On the whole , it is often the best place for those who are retired or who have young children. In contrast , young, single people who have a career are better provided for in the city.

Yêu cầu đề: Make a list of all the advantages and disadvantages of trlevision, are mixed up. Put the notes into two lists.

0
Living in the country is something that people from the city often dream about. However, in reality, it has both its advantages and disadvantages. There are certainly many advantages to living in the country. First of all, you can enjoy peace and quiet. Moreover, people tend to be friendlier and more open. A further advantage is that there is less traffic, so it is safer for young children. However, there are certain drawbacks to life outside the city. Firstly , because there are fewer people,...
Đọc tiếp

Living in the country is something that people from the city often dream about. However, in reality, it has both its advantages and disadvantages.
There are certainly many advantages to living in the country. First of all, you can enjoy peace and quiet. Moreover, people tend to be friendlier and more open. A further advantage is that there is less traffic, so it is safer for young children.
However, there are certain drawbacks to life outside the city. Firstly , because there are fewer people, you are likely to have fewer friends. In addition, entertainment is difficult to find, particularly in the evening. Furthermore, the fact that there are fewer shops and services means that it is harder to find work. As a result , you may have to travel a long way to work, which can be extremely expensive.
In conclusion, it can be seen that the country is more suitable for some people than others.On the whole , it is often the best place for those who are retired or who have young children. In contrast , young, single people who have a career are better provided for in the city.

Yêu cầu đề: Make a list of all the advantages and disadvantages of trlevision, are mixed up. Put the notes into two lists.

0
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.To many people, their friends are the most important things in their life. Really good friends (1)___ the good times and the bad times, help you when you have got problems and never turn their backs on you. Your best friend may be someone you have known all your life, someone you have grown up with and been through lots of (2)_____...
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

To many people, their friends are the most important things in their life. Really good friends (1)___ the good times and the bad times, help you when you have got problems and never turn their backs on you. Your best friend may be someone you have known all your life, someone you have grown up with and been through lots of (2)_____ and downs with.

There are all sorts of things that can (3)______ about this special relationship. It may be the result of enjoying the same activities, having the outlook on life or sharing experiences. Most of us have met someone that we have immediately felt relaxed with as if we had known them for years. (4)_______, it really takes you years to get to know someone well enough to consider your best friend.

To the majority of us, this is someone we trust completely and who understands us better (5)______ anyone else. It is the person you can turn to for impartial advice and a shoulder to cry on when life gets you down.

Question 5.

A. as

Bthan

Cmost

D. much

1
31 tháng 12 2019

Đáp án B

Giải thích: Ta xác định được đây là so sánh hơn nhờ “better.”

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 1 to 5.To many people, their friends are the most important in their life. Really good friends always (1) ___ joys and sorrows with you and never turn their backs on you. Your best friend may be someone you have known all your life or someone you have grown (2) ____with.There are all sorts of things that can (3)____about this...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 1 to 5.

To many people, their friends are the most important in their life. Really good friends always (1) ___ joys and sorrows with you and never turn their backs on you. Your best friend may be someone you have known all your life or someone you have grown (2) ____with.

There are all sorts of things that can (3)____about this special relationship. It may be the result of enjoying the same activities and sharing experiences. Most of us have met someone that we have immediately felt relaxed with as if we had known them for ages.____(4), it really takes you years to get to know someone well enough to consider your best friend. To the ____(5)of us, this is someone we trust completely and who understands us better than anyone else. It's the person you can tell him or her your most intimate secrets.

Question 5

A. majority

B. major

C. majorial

D. majorially

1
27 tháng 12 2017

Đáp án A

29 tháng 5 2021

1/of the four dresses , i like red one ( bester/ best)

2/ pill is the ( happier/happiest) person we know

3/pat is caris ( faster/fastest) than dan is

4/ this is the ( creamier/ creamiest) ice-cream i have had in a long time

5/ this is poster is ( colourfuler/ more colourful) than the one in the hall

6/ does fred fell ( weller/ better)today than he did yesterday?

7 / this vegetable suop tastes very ( good / best )

 8 / jane is the ( less/ least) athletic of all the women 

9/ my cat is the ( prettier/ prettiest) of all the two 

29 tháng 5 2021

1. better

2. happiest

3. faster

4. creamiest

5. more colorful

6. better

7. good

8. least

9. prettier

Read the following passage and mark the letter A, B , C or D on your answer sheet to indicate the correct answer to each of the questions.Colors and Emotions          Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?          Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that...
Đọc tiếp

Read the following passage and mark the letter A, B , C or D on your answer sheet to indicate the correct answer to each of the questions.

Colors and Emotions

          Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?

          Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.

          The colors that you wear affect you much more than they affect the people around you. Of course they also affect anyone who comes in contract with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion that I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better.

          Color, sound, and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions

Who is more influenced by colors you wear?

A. The people around you are more influenced

B. neither A nor C

C. You are more influenced

D. Both A and C

1
15 tháng 3 2018

Đáp án : C

Thông tin ở cuối đoạn 2: “The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.