3n+12=-30-3n

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Solution for 3n+12=-30-3n equation: 



3n+12=-30-3n

We move all terms to the left:

3n+12-(-30-3n)=0

We add all the numbers together, and all the variables

3n-(-3n-30)+12=0

We get rid of parentheses

3n+3n+30+12=0

We add all the numbers together, and all the variables

6n+42=0

We move all terms containing n to the left, all other terms to the right

6n=-42

n=-42/6

n=-7

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