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1.5m+1.3m=8.4
We move all terms to the left:
1.5m+1.3m-(8.4)=0
We add all the numbers together, and all the variables
2.8m-8.4=0
We move all terms containing m to the left, all other terms to the right
2.8m=8.4
m=8.4/2.8
m=3+1.7763568394003E-15/2.8
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