Hi!
So, you are solving for q. You need to do the opposite on both sides to get q by itself.
As you can see, q is being divided by 7, so multiply both sides by 7.
q divided by 7 MULTIPLIED by 7 just gets it back at q
9 times 7 = 63
So now we have
q = 63
So 63 is your answer!
To prove it, replace the q with 63 and do the math.
63 divided by 7 = 9
There you go!