-81=n-3(-5+4n)

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Solution for -81=n-3(-5+4n) equation: 



-81=n-3(-5+4n)

We move all terms to the left:

-81-(n-3(-5+4n))=0

We add all the numbers together, and all the variables

-(n-3(4n-5))-81=0



We calculate terms in parentheses: -(n-3(4n-5)), so:

n-3(4n-5)

We multiply parentheses

n-12n+15

We add all the numbers together, and all the variables

-11n+15

Back to the equation:

-(-11n+15)



We get rid of parentheses

11n-15-81=0

We add all the numbers together, and all the variables

11n-96=0

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

11n=96

n=96/11

n=8+8/11

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