tentukan himpunan penyelesaian dari 4|2x-1|+3=15

Bab Nilai Mutlak
Matematika SMA Kelas X

4|2x - 1| + 3 = 15
4|2x - 1| = 15 - 3
|2x - 1| = 12/4
|2x - 1| = 3

2x - 1 = 3
2x = 3 + 1
x = 4/2
x = 2

2x - 1 = -3
2x = -3 + 1
x = -2/2
x = -1

HP = { -1, 2 }