80=30+2n

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Solution for 80=30+2n equation: 



80=30+2n

We move all terms to the left:

80-(30+2n)=0

We add all the numbers together, and all the variables

-(2n+30)+80=0

We get rid of parentheses

-2n-30+80=0

We add all the numbers together, and all the variables

-2n+50=0

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

-2n=-50

n=-50/-2

n=+25

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