-2n=n-7-8

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Solution for -2n=n-7-8 equation: 



-2n=n-7-8

We move all terms to the left:

-2n-(n-7-8)=0

We add all the numbers together, and all the variables

-2n-(n-15)=0

We get rid of parentheses

-2n-n+15=0

We add all the numbers together, and all the variables

-3n+15=0

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

-3n=-15

n=-15/-3

n=+5

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