20+n=2n

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Solution for 20+n=2n equation: 



20+n=2n

We move all terms to the left:

20+n-(2n)=0

We add all the numbers together, and all the variables

-1n+20=0

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

-n=-20

n=-20/-1

n=+20

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