tìm x biết ( 3.x+24) -x = 218
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
a) Bạn xemm lại đề nhé.
b) \(5\left(x+35\right)=515\)
\(x+35=515\div5\)
\(x+35=103\)
\(x=103-35\)
\(x=68\)
Vậy \(x=68\).
c) \(90-3\left(x+1\right)=42\)
\(3\left(x+1\right)=90-42\)
\(3\left(x+1\right)=48\)
\(x+1=48\div3\)
\(x+1=16\)
\(x=16-1\)
\(x=15\)
Vậy \(x=15\).
d) \(12x-33=3^2.3^3\)
\(12x-33=3^5\)
\(12x-33=243\)
\(12x=243+33\)
\(12x=276\)
\(x=276\div12\)
\(x=23\)
Vậy \(x=23\).
e) \(100-7\left(x-5\right)=58\)
\(7\left(x-5\right)=100-58\)
\(7\left(x-5\right)=42\)
\(x-5=42\div7\)
\(x-5=6\)
\(\Rightarrow x=6+5=11\)
Vậy \(x=11\).
j) \(24+5x=7^5\div7^3\)
\(24+5x=7^2\)
\(24+5x=49\)
\(5x=49-24\)
\(5x=25\)
\(\Rightarrow x=25\div5=5\)
Vậy \(x=5\).
541+(218-x)=735
(218-x)=735-541
(218-x)=194
x=218-194
x=24
vậy x=24
5 (x+35)=515
(x+35)=515:5
(x+35=103
x=103-35
x=68
vậy x=68
90-3 (x+1)=42
3 (x+1)=90-42
3 (x+1)=48
(x+1)=48:3
(x+1)=16
x=16-1
x=15
vậy x=15
12x-33=3^2.3^3
12x-33=3^5
12x-33=243
12x=243-33
12x=210
x=210:12
x=17,5
vậy x=17,5
100- 7 (x-5)=58
7 (x-5)=100-58
7 (x-5)=42
(x-5)=42:7
(x-5)=6
x=6-5
x=1
vậy x=1
24+5x=7^5:7^3
24+5x=7^2
24+5x=49
5x=49-24
5x=25
x=25:5
x=5
vậy x=5
a)541 + (218 - x) = 735
(218 - x) = 735 - 541
(218 - x) = 194
x = 218 - 194
x = 24
Tìm số nguyên x biết
a,541 + ( 218 - x) = 735
b, ( 5x - 75 ) : 2 - 84 = 201
c, ( 2x + 25 ) . 824 = 826
a) 541 + ( 218 - x ) = 735
218 - x = 735 - 541
218 - x = 194
x = 218 - 194
x = 24
Vậy x = 24
b) ( 5x - 75 ) : 2 - 84 = 201
( 5x - 75) : 2 = 201 + 84
( 5x - 75 ) : 2 =285
5x - 75 = 285 x 2
5x - 75 =570
5x = 570 + 75
5x = 645
x= 645 : 5
x= 129
Vậy x = 129
c) ( 2x + 25 ) . 824 = 826
2x + 32 = 826 : 824
2x + 32 = 82
2x + 32 = 64
2x = 64 - 32
2x = 32
x = 32 : 2
x = 16
Vậy x = 16
a) x + 118 = 218
x = 218 – 118
x = 100
b) 18 – x = -17
X = 18 – (-17)
X = 35
c) (-18) – x = -17
X = (-18) – (-17)
X = -1
d)124 + (118 – x) = 217
118 – x = 93
X = 118 – 93
X = 25
e) (3x – 6).3 = 34
(3x – 6).3 = 81
3x – 6 = 27
3x = 33
ð X = 11
g) 23.(42 – x) = 46
42 – x = 2
ð X = 40
h) 84 – (3x + 8) = 34
3x + 8 = 84 – 34
3x + 8 = 50
3x = 50 – 8
3x = 42
X = 42 : 3
ð X = 14
i) 3.(2x + 1) – 19 = 14
3.(2x + 1) = 14 + 19
3.(2x + 1) = 33
2x + 1 = 33 : 3
2x + 1 = 11
2x = 11 – 1
2x = 10
X = 10 : 2
ð X = 5
k) 6x – 302 = 23.5
6x – 302 = 40
6x = 40 + 302
6x = 342
X = 342 : 6
ð X = 57
m) (x – 1)2 = 81
(x – 1)2 = 92
ð X – 1 = 9
ð X = 9 + 1
ð X = 10
n) 2x+1 – 5 = 27
2x+1 = 27 + 5
2x+1 = 32
2x+1 = 25
ð X = 4
541 + (218 – x) = 735
218 – x = 735 – 541
218 - x = 194
x = 218 – 194
a) <=> -218 - x - 31 = x - 29
<=> 2x = -220
<=> x = -110
b) <=> -12x + 60 + 21 - 7x = 5
<=> -19x = -76
<=> x = 4
c) <=> 3x + 21 + 28 = 9 - 2x - 10
<=> 5x = -50
<=> x = -10
d) <=> 2x + 6 - 3x + 15 = 12 - 4x - 18
<=> 3x = -27
<=> x = -9
a, 541 + (218 - x) = 735
218 - x = 735 - 541
218 - x = 194
x = 218 - 194
x = 24
Vậy x = 24
b, 5(x + 35) = 515
x + 35 = 515 : 5
x + 35 = 103
x = 103 - 35
x = 68
Vậy x = 68
c, 96 - 3(x + 1) = 42
3(x + 1) = 96 - 42
3(x + 1) = 54
x + 1 = 54 : 3
x + 1 = 18
x = 18 - 1 = 17
Vậy x = 17
d, 12x - 33 = 32 . 33
12x - 33 = 35
12x - 33 = 243
12x = 243 + 33
12x = 276
x = 276 : 12
x = 23
Vậy x = 23
Ủng hộ mk nha !!! ^_^
541 + (218 - x) = 735
218 - x = 735 - 541
218 - x = 194
x = 218 - 194
x = 24
5(x + 35) = 515
x + 35 = 515 : 5
x + 35 = 103
x = 103 - 35
x = 68
96- 3(x + 1) = 42
3(x + 1) = 96 - 42
3(x + 1) = 54
x + 1 = 54 : 3
x + 1 = 18
x = 18 - 1
x = 17
12x - 33 = 32.32
12x - 33 = 81
12x = 81 + 33
12x = 114
x = 12
541 + (218-x) = 735 5(x+35)=515
218 - x = 735 - 541 x+35 = 515:5
218 - x = 194 x +35 =103
x = 218-194 x = 103-35
x = 24 x = 68
96-3(x+1) = 42 12x - 33 = 34
3( X+1)= 96 - 42 12x-33 = 81
3( x+1) = 54 12x = 81+33
x +1 = 54:3 12x = 114
x +1 = 18 x = 114:12
x = 18-2 x = 12
x = 16
Bài này lm lâu lm đó nhớ k mik nha
(x-5)(x-7)=0
=> x-5=0 hoặc x-7=0
=> x=5 hoặc x=7
541+(218-x)=735
=> 218-x=735-541
=> 218-x=194
=> x=218-194
=> x=24
96-3(x+1)=42
=>3(x+1)=96-42
=>3(x+1)=54
=>x+1=54:3
=>x+1=18
=>x=18-1
=>x=17
(x-47)-115=0
=>x-47=0+115
=>x-47=115
=>x=115+47
=>x=162
(x-36):18=12
=>x-36=12.18
=>x-36=216
=>x=216+36
=>x=252
(x-5).(x-7)=0
x-5=0+7
x=7+5
x=12
541+(218-x)=735
218-x=735-541
x=218-196
x=12
96-3(x+1)=42
3(x+1)=96-42
x+1=54:3
x=17-1
x=16
(x-47)-115=0
x-47=0+115
x=115+47
x=162
(x-36):12=18
x-36=12*18
x-36=216
x=216+36
x=252
541 + ( 218 - x ) = 735
( 218 - x ) = 735 - 541
( 218 - x ) = 194
=> x = 218 - 194 = 24
12x - 33 = 36
12x - 33 = 729
12x = 729 + 33
12x = 762
=> x = 762 : 12
= 63,5
( 3x + 24 ) - x = - 218
3x + 24 - x . 1 = - 218
x . ( 3 - 1 ) = - 218 - 24
x . 2 = - 242
x = -242 : 2
x = -121
sai roi