18=13+n=-9

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Solution for 18=13+n=-9 equation: 



18=13+n=-9

We move all terms to the left:

18-(13+n)=0

We add all the numbers together, and all the variables

-(n+13)+18=0

We get rid of parentheses

-n-13+18=0

We add all the numbers together, and all the variables

-1n+5=0

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

-n=-5

n=-5/-1

n=+5

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