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2m/7+3m/7=1
We move all terms to the left:
2m/7+3m/7-(1)=0
We multiply all the terms by the denominator
2m+3m-1*7=0
We add all the numbers together, and all the variables
5m-7=0
We move all terms containing m to the left, all other terms to the right
5m=7
m=7/5
m=1+2/5
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