Question

Use substitution to determine which number(s) from the set 9, 12, 14, make the equation 6x = 72 true.

Answer 1

First, we substitute each number into the equation and see if it is true:
1. 6(9) = 54 (not equal to 72)
2. 6(12) = 72 (equal to 72)
3. 6(14) = 84 (not equal to 72)

Therefore, the number 12 from the set makes the equation 6x = 72 true.