2y – 18 = – 3y + 67
2y + 3y = 67 + 18
5y = 85
y = 17
1,15-3z=2,5
-3z=2,5-1,15
-3z=1,35
z=1,35/-3
z=-0,45
8x = – 8 + 12x
8x – 12x = – 8
-4x = -8
x = 2
6x + 2 = 20x – 5
6x – 20x = – 5 – 2
-14x = -7
x = 0.5
4.5x + 1 = 2 + 4.5
4,5x = 4,5 + 2 – 1
4.5x = 5.5
45x = 55
9x = 11
х=11/9
х=1,22222222222
2y – 18 = – 3y + 67
2y + 3y = 67 + 18
5y = 85
y = 17
1,15-3z=2,5
-3z=2,5-1,15
-3z=1,35
z=1,35/-3
z=-0,45
8x = – 8 + 12x
8x – 12x = – 8
-4x = -8
x = 2
6x + 2 = 20x – 5
6x – 20x = – 5 – 2
-14x = -7
x = 0.5
4.5x + 1 = 2 + 4.5
4,5x = 4,5 + 2 – 1
4.5x = 5.5
45x = 55
9x = 11
х=11/9
х=1,22222222222