-30+4n=18

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Solution for -30+4n=18 equation: 



-30+4n=18

We move all terms to the left:

-30+4n-(18)=0

We add all the numbers together, and all the variables

4n-48=0

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

4n=48

n=48/4

n=12

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