Question

using substitution which number from the set 8, 12, 16, 20 makes the equation x / 4 + 2 equals 5 true

Answer 1

Let's substitute each number from the set {8, 12, 16, 20} into the equation x / 4 + 2 = 5:

1. If we substitute 8:
8 / 4 + 2 = 2 + 2 = 4 (not equal to 5)

2. If we substitute 12:
12 / 4 + 2 = 3 + 2 = 5 (equal to 5)

3. If we substitute 16:
16 / 4 + 2 = 4 + 2 = 6 (not equal to 5)

4. If we substitute 20:
20 / 4 + 2 = 5 + 2 = 7 (not equal to 5)

Therefore, the number that makes the equation true is 12.