220=2m+20

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Solution for 220=2m+20 equation: 



220=2m+20

We move all terms to the left:

220-(2m+20)=0

We get rid of parentheses

-2m-20+220=0

We add all the numbers together, and all the variables

-2m+200=0

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

-2m=-200

m=-200/-2

m=+100

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