Em đang thi giúp e với ạ
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(x+1)+(2x+3)+(3x+5)+...+(100x+199)=30200
=(x+2x+3x+..........+100x)+(1+3+5+......+199)=4950
=x.(1+2+3+.........+100)+(1+3+5+.......+199)=4950
=>5050x+10000=30200
=>5050x=30200-4950
=>5050x=25250
=>x=25250:5050
=>x=5
5. Tea is not as good as coffee.
6. Lan is not as tall as Lan.
7. The bus isn't as fast as the train.
8. Motorbikes aren't as convenient as cars.
9. Her suitcase is not as big as his one.
10. Your backpack is not as new as mine.
35. Although Ben wanted to study in France, his French was bad.
36. The fastest way to travel from Ho Chi Minh City to Ha Noi is flying.
37. Jane has a small old white house.
38. Your brother is not as young as mine.
39. They don't have to work at weekends.
40. He was late again, so I was really angry.
Thi không giúp được bạn nhé!
Mà có giúp cũng đâu có bài đâu mà giúp ^^
Giúp gì thế em nhỉ?