Nilai mutlak dari 1/2 | 2x-9 | -3=5

½ |2x-9| - 3 = 5
½ |2x-9| = 8
|2x-9| = 16 mk
1) 2x - 9 = 16
2x = 25
x = 12½
2) - (2x-9) = 16
- 2x + 9 = 16
- 2x = 7
x = - 3½