Question

Answer 1

a: =>x+1/6=3/4 hoặc x+1/6=-3/4

=>x=3/4-1/6=9/12-2/12=7/12 hoặc x=-9/12-2/12=-11/12

b: =>x-3/4=-15/16x8/5=-120/80=-3/2

=>x=-3/2+3/4=-3/4

Answer 2

`|x + 1/6| = 3/4`

`@TH1:`

`x+1/6=3/4`

`x=3/4-1/6`

`x=9/12-2/12`

`x=7/12`

`@TH2:`

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

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

`x=-9/12-2/12`

`x=-11/12`

Vậy `x = {-11/12;7/12}`

_______________________________

`x-3/4 = (-15/16):5/8`

`x-3/4=(-15)/16 xx 9/5`

`x-3/4=-3/2`

`x=-3/2+3/4`

`x=-6/4+3/4`

`x=-3/4`

Vậy `x = -3/4`