12+15n=387

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Solution for 12+15n=387 equation: 



12+15n=387

We move all terms to the left:

12+15n-(387)=0

We add all the numbers together, and all the variables

15n-375=0

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

15n=375

n=375/15

n=25

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