-4(n-1)=84

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



-4(n-1)=84

We move all terms to the left:

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

We multiply parentheses

-4n+4-84=0

We add all the numbers together, and all the variables

-4n-80=0

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

-4n=80

n=80/-4

n=-20

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