Answer:
Step-by-step explanation:
60x - 84
60x: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, x
84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 42, 84
12(5x - 7)
