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3=0.4m-8
We move all terms to the left:
3-(0.4m-8)=0
We get rid of parentheses
-0.4m+8+3=0
We add all the numbers together, and all the variables
-0.4m+11=0
We move all terms containing m to the left, all other terms to the right
-0.4m=-11
m=-11/-0.4
m=27+0.2/0.4
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