81=-3(7n-6)

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Solution for 81=-3(7n-6) equation: 



81=-3(7n-6)

We move all terms to the left:

81-(-3(7n-6))=0



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

-3(7n-6)

We multiply parentheses

-21n+18

Back to the equation:

-(-21n+18)



We get rid of parentheses

21n-18+81=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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