120=7n+6n

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Solution for 120=7n+6n equation: 



120=7n+6n

We move all terms to the left:

120-(7n+6n)=0

We add all the numbers together, and all the variables

-(+13n)+120=0

We get rid of parentheses

-13n+120=0

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

-13n=-120

n=-120/-13

n=9+3/13

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