А)-(7-3у)=8-8(2-у)
– 7 + 3y = 8 – 16 + 8y
3y – 8y = – 16 + 8 + 7
-5y = -1
y = 0.2
б)-5(2-2х)=2(х-3)+4
– 10 + 10x = 2x – 6 + 4
10x – 2x = 4 – 6 + 10
8x = 8
x = 1
в)2х-4(х+7)=3(2-х)
2x – 4x – 28 = 6 – 3x
2x – 4x + 3x = 6 + 28
x = 34
А)-(7-3у)=8-8(2-у)
– 7 + 3y = 8 – 16 + 8y
3y – 8y = – 16 + 8 + 7
-5y = -1
y = 0.2
б)-5(2-2х)=2(х-3)+4
– 10 + 10x = 2x – 6 + 4
10x – 2x = 4 – 6 + 10
8x = 8
x = 1
в)2х-4(х+7)=3(2-х)
2x – 4x – 28 = 6 – 3x
2x – 4x + 3x = 6 + 28
x = 34