-77=-7+7n

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Solution for -77=-7+7n equation: 



-77=-7+7n

We move all terms to the left:

-77-(-7+7n)=0

We add all the numbers together, and all the variables

-(7n-7)-77=0

We get rid of parentheses

-7n+7-77=0

We add all the numbers together, and all the variables

-7n-70=0

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

-7n=70

n=70/-7

n=-10

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