9m-15=12m

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Solution for 9m-15=12m equation: 



9m-15=12m

We move all terms to the left:

9m-15-(12m)=0

We add all the numbers together, and all the variables

-3m-15=0

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

-3m=15

m=15/-3

m=-5

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