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624=-45+8m
We move all terms to the left:
624-(-45+8m)=0
We add all the numbers together, and all the variables
-(8m-45)+624=0
We get rid of parentheses
-8m+45+624=0
We add all the numbers together, and all the variables
-8m+669=0
We move all terms containing m to the left, all other terms to the right
-8m=-669
m=-669/-8
m=83+5/8
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