Problem: 5(3x-4)-12=73
5(3x - 4) - 12 = 73
15x - 20 - 12 = 73
15x - 32 = 73
15x - 32 + 32 = 73 + 32
15x = 105
15x/15 = 105/15
x = 7
Always verify.
5(3x - 4) - 12 = 73
5(3(7) - 4) - 12 = 73
5(21 - 4) - 12 = 73
5(17) - 12 = 73
85 - 12 = 73
73 = 73
Answer: x = 7