m+2m+1=13

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Solution for m+2m+1=13 equation: 



m+2m+1=13

We move all terms to the left:

m+2m+1-(13)=0

We add all the numbers together, and all the variables

3m-12=0

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

3m=12

m=12/3

m=4

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