7=7-n-7n

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



7=7-n-7n

We move all terms to the left:

7-(7-n-7n)=0

We add all the numbers together, and all the variables

-(-8n+7)+7=0

We get rid of parentheses

8n-7+7=0

We add all the numbers together, and all the variables

8n=0

n=0/8

n=0

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