28m+20=42m+13

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Solution for 28m+20=42m+13 equation: 



28m+20=42m+13

We move all terms to the left:

28m+20-(42m+13)=0

We get rid of parentheses

28m-42m-13+20=0

We add all the numbers together, and all the variables

-14m+7=0

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

-14m=-7

m=-7/-14

m=1/2

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