-84=-4(5n+1)

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Solution for -84=-4(5n+1) equation: 



-84=-4(5n+1)

We move all terms to the left:

-84-(-4(5n+1))=0



We calculate terms in parentheses: -(-4(5n+1)), so:

-4(5n+1)

We multiply parentheses

-20n-4

Back to the equation:

-(-20n-4)



We get rid of parentheses

20n+4-84=0

We add all the numbers together, and all the variables

20n-80=0

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

20n=80

n=80/20

n=4

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