Tìm x , đừng làm tắt quá ạ :33

`e)`

`0,25x - 27/8 x = 3/4`

`<=> (0,25 - 27/8) x = 3/4`

`<=> (2/8 - 27/8) x = 3/4`

`<=> -25/8 x = 3/4`

`<=> x = 3/4 : -25/8`

`<=> x = -6/25`

Vậy `x=-6/25`.

`g)`

`x : -3/5 = -10/21`

`<=> x = -10/21 . -3/5`

`<=> x = 2/7`

Vậy `x=2/7`.

`h)`

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

`<=> x - 2/3 = 1/4 + 3/2`

`<=> x - 2/3 = 1/4 + 6/4`

`<=> x - 2/3 = 7/4`

`<=> x = 7/4 + 2/3`

`<=> x = 21/12 + 8/12`

`<=> x = 29/12`

Vậy `x=29/12`.

`i)`

`x/3 - 1/4 = -5/6`

`<=> x/3 = -5/6 + 1/4`

`<=> x/3 = -10/12 + 3/12`

`<=> x/3 = -7/12`

`<=> x.12 = 3.(-7)`

`<=> 12x = -21`

`<=> x = -21:12`

`<=> x = -7/4`

Vậy `x=-7/4`.