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3.4=f/9
We move all terms to the left:
3.4-(f/9)=0
We add all the numbers together, and all the variables
-(+f/9)+3.4=0
We get rid of parentheses
-f/9+3.4=0
We multiply all the terms by the denominator
-f+(3.4)*9=0
We add all the numbers together, and all the variables
-1f+30.6=0
We move all terms containing f to the left, all other terms to the right
-f=-30.6
f=-30.6/-1
f=30+0.6/1
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