2 x - 2 = 2
2 x = 2 + 2
2 x = 4
x = 2
3 z - 10 = 11
3 z = 11 + 10
3 z = 21
z = 7
1 - y = 0
- y = - 1
y = 1
1 + 5 x = - 39
5 x = - 39 - 1
5 x = - 40
x = - 8
6 - y = - 2.3
- y = - 2.3 - 6
- y = - 8.3
y = 8.3
7 - 3 x = - 22
- 3 x = - 22 - 7
- 3 x = - 29
x = 29/3
5 + 6 z = - 11
6 z = - 11 - 5
6 z = - 16
z = - 16/5
- x - 9 = 11.2
- x = 11.2 + 9
-x = 20 .2
x = - 20.2
9.7 y - 5.7 = - 1.7
9.7 y = - 1.7 + 5.7
9.7 y = 4
y = 4 /9.7
