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-4m+7m+20=-16+5m
We move all terms to the left:
-4m+7m+20-(-16+5m)=0
We add all the numbers together, and all the variables
-4m+7m-(5m-16)+20=0
We add all the numbers together, and all the variables
3m-(5m-16)+20=0
We get rid of parentheses
3m-5m+16+20=0
We add all the numbers together, and all the variables
-2m+36=0
We move all terms containing m to the left, all other terms to the right
-2m=-36
m=-36/-2
m=+18
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