15–(3х–3)=5–4х
2(х–0.5)+1=9
| Х|=25

1) 15 - 3х + 3 = 5 - 4х18 - 3х = 5 - 4х- 3х + 4х = 5 - 18- х = - 13 х = 132) 2х - 1 + 1 = 92х = 9х = 9 / 2х = 4,5 3)  / х / = 25х = - 25; х = 25