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13m-6=-4m
We move all terms to the left:
13m-6-(-4m)=0
We get rid of parentheses
13m+4m-6=0
We add all the numbers together, and all the variables
17m-6=0
We move all terms containing m to the left, all other terms to the right
17m=6
m=6/17
m=6/17
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