-7-n=-20

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Solution for -7-n=-20 equation: 



-7-n=-20

We move all terms to the left:

-7-n-(-20)=0

We add all the numbers together, and all the variables

-1n+13=0

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

-n=-13

n=-13/-1

n=+13

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