n+18=-12-2n

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Solution for n+18=-12-2n equation: 



n+18=-12-2n

We move all terms to the left:

n+18-(-12-2n)=0

We add all the numbers together, and all the variables

n-(-2n-12)+18=0

We get rid of parentheses

n+2n+12+18=0

We add all the numbers together, and all the variables

3n+30=0

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

3n=-30

n=-30/3

n=-10

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