Answer:
- For the first equation put in 4
- For the second equation put in -12
(See below for writing)
Explanation:
1. when you distribute 3 you multiply by three, so you have to do the opposite to find your answer.12/3=4
2. You just have to rewrite it. If you made the second one a positive equation, you would have 3x+ (-12).
For the writing part,
You could use the distributive property to simplify the equation and make it easier to solve for x.