8m-15+3m=84

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Solution for 8m-15+3m=84 equation: 



8m-15+3m=84

We move all terms to the left:

8m-15+3m-(84)=0

We add all the numbers together, and all the variables

11m-99=0

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

11m=99

m=99/11

m=9

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