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