-28=7n+6n

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Solution for -28=7n+6n equation: 



-28=7n+6n

We move all terms to the left:

-28-(7n+6n)=0

We add all the numbers together, and all the variables

-(+13n)-28=0

We get rid of parentheses

-13n-28=0

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

-13n=28

n=28/-13

n=-2+2/13

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