-18=m+(-20)

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Solution for -18=m+(-20) equation: 



-18=m+(-20)

We move all terms to the left:

-18-(m+(-20))=0



We calculate terms in parentheses: -(m+(-20)), so:

m+(-20)

We add all the numbers together, and all the variables

m-20

Back to the equation:

-(m-20)



We get rid of parentheses

-m+20-18=0

We add all the numbers together, and all the variables

-1m+2=0

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

-m=-2

m=-2/-1

m=+2

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