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-2(m+4)=-30
We move all terms to the left:
-2(m+4)-(-30)=0
We add all the numbers together, and all the variables
-2(m+4)+30=0
We multiply parentheses
-2m-8+30=0
We add all the numbers together, and all the variables
-2m+22=0
We move all terms containing m to the left, all other terms to the right
-2m=-22
m=-22/-2
m=+11
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