Giúp em mấy câu này vs ạ,em cảm ơn trước

`1 ) x + 5/3 = 1/81`

`=> x = 1/81 - 5/3`

`=> x = -134/81`

Vậy `x = -134/81`

`2 ) x - 1/5 = 2`

`=> x = 2 + 1/5`

`=> x = 11/5`

Vậy `x = 11/5`

`3 ) x - 4/5 = (-3)/10`

`=> x = (-3)/10 + 4/5`

`=> x = 1/2`

Vậy `x = 1/2`

`4 ) x + 7/12 = 17/18 - 1/9`

`=> x + 7/12 = 5/6`

`=> x = 5/6 - 7/12`

`=> x = 1/4`

Vậy `x = 1/4`

`5 ) 5/6 - x = (-7)/12 + 2/3`

`=> 5/6 - x = 1/12`

`=> x = 5/6 - 1/12`

`=> x = 3/4`

Vậy `x = 3/4`

`6 ) x + 7/8 = 3/4`

`=> x = 3/4 - 7/8`

`=> x = -1/8`

Vậy `x = -1/8`

`7 ) 1/2x - 1/4 = -1/2`

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

`=> 1/2x = -1/4`

`=> x = -1/4 : 1/2`

`=> x = -1/2`

Vậy `x = -1/2`

`8 ) 1/2 - 5/6 : x = 2/3`

`=> 5/6 : x = 1/2 - 2/3`

`=> 5/6 : x = -1/6`

`=> x = 5/6 : (-1/6)`

`=> x = -5`

Vậy `x = -5`

`9 ) 3/4x = 5/2`

`=> x = 5/2 : 3/4`

`=> x = 10/3`

Vậy `x = 10/3`

`10 ) -52 + 2/3x = -46`

`=> 2/3x = -46 - (-52)`

`=> 2/3x = 6`

`=> x = 6 : 2/3`

`=> x = 9`

Vậy `x = 9`

`#dtkc`