7.5m+3m-m=28.5

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Solution for 7.5m+3m-m=28.5 equation: 



7.5m+3m-m=28.5

We move all terms to the left:

7.5m+3m-m-(28.5)=0

We add all the numbers together, and all the variables

9.5m-28.5=0

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

9.5m=28.5

m=28.5/9.5

m=3

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