2m=9-m

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Solution for 2m=9-m equation: 



2m=9-m

We move all terms to the left:

2m-(9-m)=0

We add all the numbers together, and all the variables

2m-(-1m+9)=0

We get rid of parentheses

2m+1m-9=0

We add all the numbers together, and all the variables

3m-9=0

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

3m=9

m=9/3

m=3

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