Giúp với ạ. Cảm ơn nhiều

`a)`

`x=-1/4+2/13`

`x=-5/52`

Vậy `x=-5/52`

`b)`

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

`x/3=11/21`

`x=(11.3)/21`

`x=11/7`

Vậy `x=11/7`

`c)`

`-5/6-x=7/12+(-1)/3`

`-5/6-x=1/4`

`x=(-5)/6-1/4`

`x=-13/12`

Vậy `x=-13/12`

`d)`

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

`x-3=5/7:5`

`x-3=1/7`

`x=1/7+3`

`x=22/7`

Vậy `x=22/7`

`e)`

`-4(x-1/3)=-8/3`

`x-1/3=(-8)/3:(-4)`

`x-1/3=2/3`

`x=2/3+1/3`

`x=1`

Vậy `x=1`

`f)`

`x+2/3=-1/12 . (-4)/5`

`x+2/3=1/15`

`x=1/15-2/3`

`x=-3/5`

Vậy `x=-3/5`

`g)`

`x-4=(-14)/35 : 7/5`

`x-4=(-14)/35 . 5/7`

`x-4=-2/7`

`x=-2/7+4`

`x=26/7`

`h)`

`-3/7 x =3/56 . 28/9`

`-3/7 x =1/6`

`x=1/6:(-3)/7`

`x=1/6 . (-7)/3`

`x=-7/18`

Vậy `x=-7/18`