Giải thích các bước giải:
`a. 11/12-2/3|x|=3/8`
`=>2/3|x|=11/12-3/8`
`=>2/3|x|=22/24-9/24`
`=>2/3|x|=13/24`
`=>|x|=13/24:2/3`
`=>|x|=13/24 . 3/2`
`=>|x|=13/16`
`=>x=+-13/16`
`b.|2x-1|=5`
TH`1`
`2x-1=5`
`=>2x=5+1`
`=>2x=6`
`=>x=6:2`
`=>x=3`
TH`2`
`2x-1=-5`
`=>2x=-5+1`
`=>2x=-4`
`=>x=-4:2`
`=>x=-2`