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4.2+10m=8.13
We move all terms to the left:
4.2+10m-(8.13)=0
We add all the numbers together, and all the variables
10m-3.93=0
We move all terms containing m to the left, all other terms to the right
10m=3.93
m=3.93/10
m=2.0362694300518/5.1813471502591
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