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1.65=1.5r
We move all terms to the left:
1.65-(1.5r)=0
We add all the numbers together, and all the variables
-(+1.5r)+1.65=0
We get rid of parentheses
-1.5r+1.65=0
We move all terms containing r to the left, all other terms to the right
-1.5r=-1.65
r=-1.65/-1.5
r=1+0.15/1.5
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