Answer:
4 + 9q
Step-by-step explanation:
In order to simplify an expression, you must combine like terms.
The two like terms in this expression are 7 an -3
Add these two like terms together.
7 + (-3) or 7 - 3
= 4
9q doesn't have any like terms so you can leave that alone.
4 + 9q is your answer.
