1-2/3|2x+3|=2/3 trả lời giúp e

Giải thích các bước giải:

`1-2/3|2x+3|=2/3`
`=>2/3|2x+3|=1-2/3`
`=>2/3|2x+3|=3/3-2/3`
`=>2/3|2x+2|=1/3`
`=>|2x+2|=1/3 . 3/2`
`=>|2x+2|=1/2`
TH`1`
`2x+3=1/2`
`=>2x=1/2-3`
`=>2x=1/2-6/2`
`=>2x=-5/2`
`=>x=-5/2:2`
`=>x=-5/2 . 1/2`
`=>x=-5/4`
TH`2`
`2x+3=-1/2`
`=>2x=-1/2-3`
`=>2x=-1/2-6/2`
`=>2x=-7/2`
`=>x=-7/2:2`
`=>x=-7/2 . 1/2`
`=>x=-7/4`
Vậy `x\in{-7/4;-5/4}`

1-$\frac{2}{3}$|2x+3|=$\frac{2}{3}$

-$\frac{2}{3}$|2x+3|=$\frac{-1}{3}$

$\frac{2}{3}$|2x+3|=$\frac{1}{3}$

2|2x+3|=1

|2x+3|=$\frac{1}{2}$

<=>$\left [ {{2x+3=\frac{1}{2}} \atop {2x+3=\frac{-1}{2}}} \right.$

<=>$\left [ {{x=-1,25} \atop {x=-1,75}} \right.$