m-42=2m

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Solution for m-42=2m equation: 



m-42=2m

We move all terms to the left:

m-42-(2m)=0

We add all the numbers together, and all the variables

-1m-42=0

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

-m=42

m=42/-1

m=-42

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