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4.2+10m=8.71
We move all terms to the left:
4.2+10m-(8.71)=0
We add all the numbers together, and all the variables
10m-4.51=0
We move all terms containing m to the left, all other terms to the right
10m=4.51
m=4.51/10
m=1.796812749004/3.9840637450199
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