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28=-4-4m
We move all terms to the left:
28-(-4-4m)=0
We add all the numbers together, and all the variables
-(-4m-4)+28=0
We get rid of parentheses
4m+4+28=0
We add all the numbers together, and all the variables
4m+32=0
We move all terms containing m to the left, all other terms to the right
4m=-32
m=-32/4
m=-8
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