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3.7(6.5r-10.3)=90.6
We move all terms to the left:
3.7(6.5r-10.3)-(90.6)=0
We add all the numbers together, and all the variables
3.7(6.5r-10.3)-90.6=0
We multiply parentheses
22.2r-38.11-90.6=0
We add all the numbers together, and all the variables
22.2r-128.71=0
We move all terms containing r to the left, all other terms to the right
22.2r=128.71
r=128.71/22.2
r=5+10.3567251462/12.9824561404
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