Question

-3(n+5)=12 What does n equal?

Answer 1

Distribute -3 to get rid of the parentheses.
Add 15 to both sides.
Now divide -3 on both sides.
You have your answer!
-3(n+5)=12
-3n-15=12
     +15 +15
-3n=27
-3     -3
n=-9