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