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0.5m+3.5=12
We move all terms to the left:
0.5m+3.5-(12)=0
We add all the numbers together, and all the variables
0.5m-8.5=0
We move all terms containing m to the left, all other terms to the right
0.5m=8.5
m=8.5/0.5
m=17
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