b ) `7/4` - `3/4` ( x - `1/3` ) =2
`3/4` ( x - `1/3` ) = `7/4` - 2
`3/4` (x - `1/3` ) =`-1/4`
x - `1/3` = `-1/4` : `3/4`
x - `1/3` = `-1/3`
x = `-1/3` + `1/3`
x =0
c) |x - 1/2 | =2
x - 1/2 = 2 hoặc x - 1/2 = -2
x = 2+ 1/2 x = -2 + 1/2
x = 5/2 x = -3/2
Vậy x = 5/2 hoặc x=-3/2
`#` `I` `am` `two` `shifts` `eight`
`Nếu` `đúng` `cho` `mk` `xin` `ctrlhn` `ạ`