-20n=-720

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Solution for -20n=-720 equation: 



-20n=-720

We move all terms to the left:

-20n-(-720)=0

We add all the numbers together, and all the variables

-20n+720=0

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

-20n=-720

n=-720/-20

n=+36

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