Question

Use substitution to determine which number from the set {6,7,8, 9} makes the equation 63 ÷ x = 9 true.

Answer 1

To find which number from the set {6, 7, 8, 9} makes the equation 63 ÷ x = 9 true, we can substitute each number in place of x and check if the equation holds true.

Starting with 6:
63 ÷ 6 = 10.5 (not equal to 9)

Next, with 7:
63 ÷ 7 = 9 (equal to 9)

Therefore, the number 7 from the set {6, 7, 8, 9} makes the equation 63 ÷ x = 9 true.