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-2=m/12-3
We move all terms to the left:
-2-(m/12-3)=0
We get rid of parentheses
-m/12+3-2=0
We multiply all the terms by the denominator
-m+3*12-2*12=0
We add all the numbers together, and all the variables
-1m+12=0
We move all terms containing m to the left, all other terms to the right
-m=-12
m=-12/-1
m=+12
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