30+6n=120

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Solution for 30+6n=120 equation: 



30+6n=120

We move all terms to the left:

30+6n-(120)=0

We add all the numbers together, and all the variables

6n-90=0

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

6n=90

n=90/6

n=15

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