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3.5(15.5r-1.4)=56.6
We move all terms to the left:
3.5(15.5r-1.4)-(56.6)=0
We add all the numbers together, and all the variables
3.5(15.5r-1.4)-56.6=0
We multiply parentheses
52.5r-4.9-56.6=0
We add all the numbers together, and all the variables
52.5r-61.5=0
We move all terms containing r to the left, all other terms to the right
52.5r=61.5
r=61.5/52.5
r=1+9/52.5
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