-18=n-5-7

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Solution for -18=n-5-7 equation: 



-18=n-5-7

We move all terms to the left:

-18-(n-5-7)=0

We add all the numbers together, and all the variables

-(n-12)-18=0

We get rid of parentheses

-n+12-18=0

We add all the numbers together, and all the variables

-1n-6=0

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

-n=6

n=6/-1

n=-6

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