20=2m-(-8)

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Solution for 20=2m-(-8) equation: 



20=2m-(-8)

We move all terms to the left:

20-(2m-(-8))=0



We calculate terms in parentheses: -(2m-(-8)), so:

2m-(-8)

We add all the numbers together, and all the variables

2m+8

Back to the equation:

-(2m+8)



We get rid of parentheses

-2m-8+20=0

We add all the numbers together, and all the variables

-2m+12=0

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

-2m=-12

m=-12/-2

m=+6

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