| |2x-1|+2 |=17 => 1) | 2x - 1 | + 2 = 17
2) | 2x - 1 | + 2 = -17
1) | 2x - 1 | + 2 = 17
| 2x - 1 | = 17 - 2
| 2x - 1 | = 15 => 1a) 2x - 1 = 15
2a) 2x - 1 = -15
1a) 2x - 1 = 15
2x = 15 + 1
2x = 16
x = 16 : 2
x = 8✔
2a) 2x - 1 = - 15
2x = - 15 + 1
2x = -14
x = -14 : 2
x = -7✔
2) | 2x - 1 | + 2 = -17
| 2x - 1 | = -17 - 2
| 2x - 1 | = -19 => ⚠ imposibil ⚠
✏ S = { 8; -7 } ✨