Use substitution to determine which number(s) from the set {9, 12, 14} make the equation 6x = 72 true.(
To determine which number(s) from the set {9, 12, 14} make the equation 6x = 72 true, we can substitute each number into the equation and check if the equation holds true.
Substituting 9 into the equation:
6(9) = 72
54 = 72
Since 54 is not equal to 72, 9 does not make the equation true.
Substituting 12 into the equation:
6(12) = 72
72 = 72
Since 72 is equal to 72, 12 makes the equation true.
Substituting 14 into the equation:
6(14) = 72
84 = 72
Since 84 is not equal to 72, 14 does not make the equation true.
Therefore, the only number from the set {9, 12, 14} that makes the equation 6x = 72 true is 12.