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 calculate terms in parentheses: -(10-(-2n)), so:

10-(-2n)

determiningTheFunctionDomain
-(-2n)+10

We get rid of parentheses

2n+10

Back to the equation:

-(2n+10)



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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