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