84=4(7-2n)

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Solution for 84=4(7-2n) equation: 



84=4(7-2n)

We move all terms to the left:

84-(4(7-2n))=0

We add all the numbers together, and all the variables

-(4(-2n+7))+84=0



We calculate terms in parentheses: -(4(-2n+7)), so:

4(-2n+7)

We multiply parentheses

-8n+28

Back to the equation:

-(-8n+28)



We get rid of parentheses

8n-28+84=0

We add all the numbers together, and all the variables

8n+56=0

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

8n=-56

n=-56/8

n=-7

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