Làm hộ tôi nhanh vs 4h phải nộp rồi

$\color{#cff0f3}{>} \color{#c9ecf9}{<} \color{#d2e4f7}{d} \color{#d2e0f7}{d.} \color{#c1d8fc}{c} \color{#aac4ee}{h} \color{#8cb2f0}{a} \color{#3d85c6}{u}$

`a)x-5/7=(-14)/7`

`x=(-14)/7+5/7`

`x=(-9)/7`

Vậy `x=(-9)/7`

`b)5/12-x=5/9`

`x=5/12-5/9`

`x=(-5)/36`

Vậy `x=(-5)/36`

`c)x:5/6=(-7)/15`

`x=(-7)/15*5/6`

`x=(-7)/18`

Vậy `x=(-7)/18`

`d)2/3x+5/6=(-7)/6`

`2/3x=(-7)/6-5/6`

`2/3x=-2`

`x=(-2):2/3`

`x=-3`

Vậy `x=-3`