Add
x + 5 = 9
x = 4
x - 6 = 15
x = 9
6x = 36
x = 6
x/2 = 6
x = 12
5x = 450
x = 90
x + 12 = 23
x = 11
x - 2 = 9
x = 7
7x = 49
x = 7
x/4 = 5
x = 20
22 + x = 44
x = 22
32 - x = 8
x = 24
9=99x
x = 11
x/9 = 9
x = 81
44 + x = 102
x = 58
84 - x = 28
x = 56
15x = 120
x = 8
2/x = 1
x = 2
x + 123 = 452
x = 329
x = 961
6x = 222
x = 37
42/x = 7
x = 6