Helppp meee.........

`a)`

`3/5 + 1/2 x = (-1)/10`

`1/2 x = (-1)/10 - 3/5`

`1/2 x = (-7)/10`

`x = (-7)/10 : 1/2`

`x = (-7)/10 . 2`

`x = (-7)/5`

`b)`

`(x+1/6)^2 - 4/9 = 0`

`(x+1/6)^2 = 4/9`

`(x+1/6)^2 = (2/3)^2` hoặc `(x+1/6)^2 = (-2/3)^2`

`x+1/6=2/3` hoặc `x+1/6=(-2)/3`

`x=2/3 - 1/6` hoặc `x=(-2)/3 - 1/6`

`x=1/2` hoặc `x=-5/6`