Tentukan himpunan penyelesaian dari persamaan nilai mutlak |4x-1|=x+9

Bab Nilai Mutlak
Matematika SMA Kelas X

|4x - 1| = x + 9

4x - 1 = x + 9
4x - x = 9 + 1
3x = 10
x = 10/3

4x - 1 = -x - 9
4x + x = -9 + 1
5x = -8
x = -8/5

HP = {-8/5, 10/3}