20=10+2n

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Solution for 20=10+2n equation: 



20=10+2n

We move all terms to the left:

20-(10+2n)=0

We add all the numbers together, and all the variables

-(2n+10)+20=0

We get rid of parentheses

-2n-10+20=0

We add all the numbers together, and all the variables

-2n+10=0

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

-2n=-10

n=-10/-2

n=+5

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