7=7n+8-1

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Solution for 7=7n+8-1 equation: 



7=7n+8-1

We move all terms to the left:

7-(7n+8-1)=0

We add all the numbers together, and all the variables

-(7n+7)+7=0

We get rid of parentheses

-7n-7+7=0

We add all the numbers together, and all the variables

-7n=0

n=0/-7

n=0

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