20+m+30=20+2m

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Solution for 20+m+30=20+2m equation: 



20+m+30=20+2m

We move all terms to the left:

20+m+30-(20+2m)=0

We add all the numbers together, and all the variables

m-(2m+20)+20+30=0

We add all the numbers together, and all the variables

m-(2m+20)+50=0

We get rid of parentheses

m-2m-20+50=0

We add all the numbers together, and all the variables

-1m+30=0

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

-m=-30

m=-30/-1

m=+30

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