15=n+7

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Solution for 15=n+7 equation: 



15=n+7

We move all terms to the left:

15-(n+7)=0

We get rid of parentheses

-n-7+15=0

We add all the numbers together, and all the variables

-1n+8=0

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

-n=-8

n=-8/-1

n=+8

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