Question

Giải giúp e vs ạ, e cần gấp ạ! E cảm ơn nhìu ^^

 

 

Answer 1

`a, -5x - 2/3 = 1/2`

`-5x = 1/2 + 2/3`

`-5x = 7/6`

`x = 7/6 : -5`

`x = -7/30`

Answer 2

`2x - 2/3 - 7x = 3/2 - 1`

`2x-2/3 - 7x = 3/2 - 2/2`

`2x -2/3 - 7x = 1/2`

`(2-7)x - 2/3 =1/2`

`-5x-2/3 = 1/2`

`-5x=1/2 + 2/3`

`-5x = 3/6 + 4/6`

`-5x = 7/6`

`x=7/6 : (-5)`

`x=7/6 xx (-1/5)`

`x=-7/30`

Vậy `x=-7/30`