Question

Tìm x:(x-5)-(2x+7)=-8

Answer 1

`(x-5)-(2x+7)=-8`

`=> x-5-2x-7=-8`

`=> x-5-2x-7+8=0`

`=> -x -4=0`

`=> -x=4`

`=> x=-4`

Vậy `x=-4`

 

 

Answer 2

=>x-5-2x-7=-8

=>-x-12=-8

=>x=-4