2x + 4 = x +9
5x = 0
(x : 8 ) + 3 = 6
7x - 40 = 9
5x = - 45
2x - 10 = 30
5x - 2 = 8
x + 1 = 101
5x - 3 = 2
4x + 6 = 30
100
1
2
5
- 9
24
0
7
6
20
