158k views
4 votes
Can you help me with 12-3(x+1)=30

User Jashkenas
by
6.0k points

1 Answer

4 votes
Greetings!


12-3(x+1)=30
Distribute the Parenthesis.

12-3x-3=30
Combine like terms.

9-3x=30
Add -9 to both sides.

(15-3x)+(-9)=(30)+(-9)

-3x=21
Divide both sides by -3.

(-3x)/-3=(21)/-3
The Answer Is:

x=-7

Hope this helps.
-Benjamin
User Nikolaos Georgiou
by
6.5k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.