nilai mutlak |x-1|+|3x-6|=9

Mapel : Matematika
Kelas : X SMA
Materi : Persamaan Mutlak

Pembahasan :
|x - 1| + |3x - 6| = 9

x - 1 + 3x - 6 = 9
4x - 7 = 9
4x = 16
x = 4

x - 1 + 3x - 6 = -9
4x - 7 = -9
4x = -2
x = -1/2

Hp : {-1/2 , 4}