12=3(4n-5)

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Solution for 12=3(4n-5) equation: 



12=3(4n-5)

We move all terms to the left:

12-(3(4n-5))=0



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

3(4n-5)

We multiply parentheses

12n-15

Back to the equation:

-(12n-15)



We get rid of parentheses

-12n+15+12=0

We add all the numbers together, and all the variables

-12n+27=0

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

-12n=-27

n=-27/-12

n=2+1/4

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