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3m-6-12m=8m+28
We move all terms to the left:
3m-6-12m-(8m+28)=0
We add all the numbers together, and all the variables
-9m-(8m+28)-6=0
We get rid of parentheses
-9m-8m-28-6=0
We add all the numbers together, and all the variables
-17m-34=0
We move all terms containing m to the left, all other terms to the right
-17m=34
m=34/-17
m=-2
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