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12m-4(2=m)
We move all terms to the left:
12m-4(2-(m))=0
We add all the numbers together, and all the variables
12m-4(-1m+2)=0
We multiply parentheses
12m+4m-8=0
We add all the numbers together, and all the variables
16m-8=0
We move all terms containing m to the left, all other terms to the right
16m=8
m=8/16
m=1/2
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