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100m=40+2m
We move all terms to the left:
100m-(40+2m)=0
We add all the numbers together, and all the variables
100m-(2m+40)=0
We get rid of parentheses
100m-2m-40=0
We add all the numbers together, and all the variables
98m-40=0
We move all terms containing m to the left, all other terms to the right
98m=40
m=40/98
m=20/49
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