3=-7-n

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Solution for 3=-7-n equation: 



3=-7-n

We move all terms to the left:

3-(-7-n)=0

We add all the numbers together, and all the variables

-(-1n-7)+3=0

We get rid of parentheses

1n+7+3=0

We add all the numbers together, and all the variables

n+10=0

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

n=-10

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