One variable
32 = x - 5
37
5 + x = x + 5
5 = 5 or x = x
5x = 5x + 3
0 ≠ 3
5x = 65
13
5x + 3 = 5x + 3
3 = 3 or 5x = 5x
5x - 3 = 5x + 3
-3 ≠ 3
7
7(x + 2) = 7x + 14
14 = 14 or 7x = 7x
44 + 8x = 8(x + 5)
44 ≠ 40
15 = 5x/7
21
3(x+1) -5 = 3x - 2
-2 = -2 or 3x = 3x
4x + 10 = 4x + 7
10 ≠ 7
30 = 10x/20 + 15
30
8 - 7(4v + 5) = -27 -28v
-27 = -27 or -28v = -28v
13x - 5(x-4) = 8x + 5
0 ≠ - 15