Answer:
? = 8
Step-by-step explanation:
The following expression is given: 8x + 64
In this case, they factored out 8. Divide 8 from all terms in the expression:
(8x + 64)/8 =
(8x)/8 = x
(64)/8 = 8
8(x + 8) is the answer to the expression.
The number for ? is 8.
8 is therefore your answer.
