-126=3n+3(4n-7)

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Solution for -126=3n+3(4n-7) equation: 



-126=3n+3(4n-7)

We move all terms to the left:

-126-(3n+3(4n-7))=0



We calculate terms in parentheses: -(3n+3(4n-7)), so:

3n+3(4n-7)

We multiply parentheses

3n+12n-21

We add all the numbers together, and all the variables

15n-21

Back to the equation:

-(15n-21)



We get rid of parentheses

-15n+21-126=0

We add all the numbers together, and all the variables

-15n-105=0

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

-15n=105

n=105/-15

n=-7

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