84=6-3(7n-5)

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Solution for 84=6-3(7n-5) equation: 



84=6-3(7n-5)

We move all terms to the left:

84-(6-3(7n-5))=0



We calculate terms in parentheses: -(6-3(7n-5)), so:

6-3(7n-5)

determiningTheFunctionDomain
-3(7n-5)+6

We multiply parentheses

-21n+15+6

We add all the numbers together, and all the variables

-21n+21

Back to the equation:

-(-21n+21)



We get rid of parentheses

21n-21+84=0

We add all the numbers together, and all the variables

21n+63=0

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

21n=-63

n=-63/21

n=-3

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