57=-3(4n-3)

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Solution for 57=-3(4n-3) equation: 



57=-3(4n-3)

We move all terms to the left:

57-(-3(4n-3))=0



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

-3(4n-3)

We multiply parentheses

-12n+9

Back to the equation:

-(-12n+9)



We get rid of parentheses

12n-9+57=0

We add all the numbers together, and all the variables

12n+48=0

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

12n=-48

n=-48/12

n=-4

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