a) |x - 4/3| = 1/6 + |5/3 - 1/2| + 7/12
|x - 4/3| = 1/6 + |7/6| + 7/12
|x - 4/3| = 1/6 + 7/6 + 7/12
|x - 4/3| = 4/3 + 7/12
|x - 4/3| = 23/12
x - 4/3 = 23/12 hoặc x - 4/3 = -23/12
* x - 4/3 = 23/12
x = 23/12 + 4/3
x = 13/4
* x - 4/3 = -23/12
x = -23/12 + 4/3
x = -7/12
Vậy x = 13/4 hoặc x = -7/12