-8=7+3n

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Solution for -8=7+3n equation: 



-8=7+3n

We move all terms to the left:

-8-(7+3n)=0

We add all the numbers together, and all the variables

-(3n+7)-8=0

We get rid of parentheses

-3n-7-8=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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