13x + 6 = 9x + 22
13x - 9x = 22 - 6
4x = 16
x = 16/4
x = 4
5x - 2 = 2x + 3
5x - 2x = 3 + 2
3x = 5
x = 5/3
3 - 2x = 7 + 5x
3 - 7 = 5x + 2x
-4 = 7x
-4/7 = x
3(7x - 8) = 10x + 4
21x - 24 = 10x + 4
21x - 10x = 4 + 24
11x = 28
x = 28/11
2(5 + 2x) = 4x - 5
10 + 4x = 4x - 5
4x - 4x = -5 - 10
0 = -15
IMPOSSIBLE