Answer:
20
Step-by-step explanation:
Begin to solve it. What is the first thing you have to do to complete it?
Answer:
Step-by-step explanation:
We'll combine the and the on the right side.
Now, we'll subtract from both sides.
Divide both sides by .
Ta-da!
It already is in disruptive property but to solve it using distributive property it become 3x+21.