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5m=8.4
We move all terms to the left:
5m-(8.4)=0
We add all the numbers together, and all the variables
5m-8.4=0
We move all terms containing m to the left, all other terms to the right
5m=8.4
m=8.4/5
m=1+2.4285714285714/3.5714285714286
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