45: x = 1 (x = 1)
38x = 38 (x = 1)
42:x = 42 (x = 1)
36 - x = 1 (x = 35)
x:34 = 1 (x = 34)
x54 = 54 (x = 1)
x - 34 = 34 (no solution)
24 + x = 24 (x = 0)