30+5n=7n

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Solution for 30+5n=7n equation: 



30+5n=7n

We move all terms to the left:

30+5n-(7n)=0

We add all the numbers together, and all the variables

-2n+30=0

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

-2n=-30

n=-30/-2

n=+15

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