-n-21=-5(-5n-1)

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Solution for -n-21=-5(-5n-1) equation: 



-n-21=-5(-5n-1)

We move all terms to the left:

-n-21-(-5(-5n-1))=0

We add all the numbers together, and all the variables

-1n-(-5(-5n-1))-21=0



We calculate terms in parentheses: -(-5(-5n-1)), so:

-5(-5n-1)

We multiply parentheses

25n+5

Back to the equation:

-(25n+5)



We get rid of parentheses

-1n-25n-5-21=0

We add all the numbers together, and all the variables

-26n-26=0

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

-26n=26

n=26/-26

n=-1

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