1) 7(-3+2х)=-6+1
– 21 + 14x = – 6 + 1
14x = 1 – 6 + 21
14x = 16
7x = 8
x = 8/7
х=1,14285714286
2) 2*(7+9х)=-6+2
14 + 18x = – 6 + 2
18x = 2 – 6 – 14
18x = -18
x = -1
3) 5-2х=8х+9
– 2x – 8x = 9 – 5
-10x = 4
x = -0.4
4) 3-4х=4х-5
– 4x – 4x = – 5 – 3
-8x = -8
x = 1
5) -1-8х=-10х+3
– 8x + 10x = 3 + 1
2x = 4
x = 2
1) 7(-3+2х)=-6+1
– 21 + 14x = – 6 + 1
14x = 1 – 6 + 21
14x = 16
7x = 8
x = 8/7
х=1,14285714286
2) 2*(7+9х)=-6+2
14 + 18x = – 6 + 2
18x = 2 – 6 – 14
18x = -18
x = -1
3) 5-2х=8х+9
– 2x – 8x = 9 – 5
-10x = 4
x = -0.4
4) 3-4х=4х-5
– 4x – 4x = – 5 – 3
-8x = -8
x = 1
5) -1-8х=-10х+3
– 8x + 10x = 3 + 1
2x = 4
x = 2