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3.4(5.1-2.3m)=20.4-2.3m
We move all terms to the left:
3.4(5.1-2.3m)-(20.4-2.3m)=0
We add all the numbers together, and all the variables
3.4(-2.3m+5.1)-(-2.3m+20.4)=0
We multiply parentheses
-6.8m-(-2.3m+20.4)+17.34=0
We get rid of parentheses
-6.8m+2.3m-20.4+17.34=0
We add all the numbers together, and all the variables
-4.5m-3.06=0
We move all terms containing m to the left, all other terms to the right
-4.5m=3.06
m=3.06/-4.5
m=-2.8867924528302/4.2452830188679
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