2(2x-1)-3(5-4x)=1=1+4(x-2)

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

=>4(x-2)=0

=>x-2=0

=>x=2

70/3 nha bn

Chia động từ thích hợp trong câu sau

1. All......FIGHTS ....... ( fly) between Paris and Hanoi have been cancelled due to fog

2. There is plenty of........ENTERTAINMENT........for young people in this city

3. It's......USELESS.......( use) to complain, you won't get your money back

4. During his........CHILDHOOD........ ( child) the family used to live in the countryside

5. He is such ( a/ an ).........helpful....... ( help ) person that no one like him