Решить уравнения : 1) 5-2(х-1)=4-х 2)4-6(х+2)=3-5х 3)3(8-3у)=32-8(у-7) 4)4-(6-4у)=5(7-3у)-19 заранее !

1.
 5 - 2x + 2 = 4 - x
-2x + x = 4 - 2 - 5
- x = - 3
x = 3

2.
 4 - 6x - 12 = 3 - 5x
- 6x + 5x = 3 - 4 + 12
- x = 11
x = - 11

3.
24 - 9y= 32 - 8y+ 56
- 9y + 8y = 32 + 56 - 24
- y = 64
y = - 64

4.
4 - 6 + 4y = 35 - 15y - 19
4y + 15y = 35 - 19 - 4 + 6
19y = 18
        18
y =
        19