-4n=-72

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Solution for -4n=-72 equation: 



-4n=-72

We move all terms to the left:

-4n-(-72)=0

We add all the numbers together, and all the variables

-4n+72=0

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

-4n=-72

n=-72/-4

n=+18

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