Answer:
its b
Step-by-step explanation:
Answer:
I'm glad you asked!
Step-by-step explanation:
OK,let's simplify the number for a equivalent expression.

Distribute:


Combine Like Terms:



The Final Answer is : 
Answer:

Step-by-step explanation:
Divide both sides by 9 to isolate x:

Hope this helps!
For the GCF the answer is 7