15m+2m=21

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Solution for 15m+2m=21 equation: 



15m+2m=21

We move all terms to the left:

15m+2m-(21)=0

We add all the numbers together, and all the variables

17m-21=0

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

17m=21

m=21/17

m=1+4/17

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