8+2+12+n=30

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Solution for 8+2+12+n=30 equation: 



8+2+12+n=30

We move all terms to the left:

8+2+12+n-(30)=0

We add all the numbers together, and all the variables

n-8=0

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

n=8

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