18+2n=30

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Solution for 18+2n=30 equation: 



18+2n=30

We move all terms to the left:

18+2n-(30)=0

We add all the numbers together, and all the variables

2n-12=0

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

2n=12

n=12/2

n=6

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