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4.3+10m=7.81
We move all terms to the left:
4.3+10m-(7.81)=0
We add all the numbers together, and all the variables
10m-3.51=0
We move all terms containing m to the left, all other terms to the right
10m=3.51
m=3.51/10
m=2.3245033112583/6.6225165562914
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