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2.1+10m=8.15
We move all terms to the left:
2.1+10m-(8.15)=0
We add all the numbers together, and all the variables
10m-6.05=0
We move all terms containing m to the left, all other terms to the right
10m=6.05
m=6.05/10
m=2.9512195121951/4.8780487804878
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