7-7n=15+n

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Solution for 7-7n=15+n equation: 



7-7n=15+n

We move all terms to the left:

7-7n-(15+n)=0

We add all the numbers together, and all the variables

-7n-(n+15)+7=0

We get rid of parentheses

-7n-n-15+7=0

We add all the numbers together, and all the variables

-8n-8=0

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

-8n=8

n=8/-8

n=-1

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