-7=3+5n

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Solution for -7=3+5n equation: 



-7=3+5n

We move all terms to the left:

-7-(3+5n)=0

We add all the numbers together, and all the variables

-(5n+3)-7=0

We get rid of parentheses

-5n-3-7=0

We add all the numbers together, and all the variables

-5n-10=0

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

-5n=10

n=10/-5

n=-2

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