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5m+6.5=15
We move all terms to the left:
5m+6.5-(15)=0
We add all the numbers together, and all the variables
5m-8.5=0
We move all terms containing m to the left, all other terms to the right
5m=8.5
m=8.5/5
m=1+2.3333333333333/3.3333333333333
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