1) 3(2х-1)+7=5(х-1)+7
6x – 3 + 7 = 5x – 5 + 7
6x – 5x = 7 – 5 – 7 + 3
x = -2
2) 0.8(0.5-2v)=2v+0.4
0.4 – 1.6v = 2v + 0.4
– 1,6v – 2v = 0,4 – 0,4
v = 0
3) -2(x+5)+3=2-3(х+1)
– 2x – 10 + 3 = 2 – 3x – 3
– 2x + 3x = – 3 + 2 – 3 + 10
x = 6
1) 3(2х-1)+7=5(х-1)+7
6x – 3 + 7 = 5x – 5 + 7
6x – 5x = 7 – 5 – 7 + 3
x = -2
2) 0.8(0.5-2v)=2v+0.4
0.4 – 1.6v = 2v + 0.4
– 1,6v – 2v = 0,4 – 0,4
v = 0
3) -2(x+5)+3=2-3(х+1)
– 2x – 10 + 3 = 2 – 3x – 3
– 2x + 3x = – 3 + 2 – 3 + 10
x = 6