Tent nilai yg memenuhi persamaan X+|2x-1|=3

Materi : Persamaan Mutlak

Pembahasan :
x + |2x - 1| = 3
|2x - 1| = 3 - x
(2x - 1)² = (3 - x)²
(2x - 1)² - (3 - x)² = 0
(2x - 1 + 3 - x)(2x - 1 - 3 + x) = 0
(x + 2)(3x - 4) = 0
x = 4/3
x = -2

Hp : {-2 , 4/3}