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3.5(13.2r-7.3)=98.4
We move all terms to the left:
3.5(13.2r-7.3)-(98.4)=0
We add all the numbers together, and all the variables
3.5(13.2r-7.3)-98.4=0
We multiply parentheses
45.5r-25.55-98.4=0
We add all the numbers together, and all the variables
45.5r-123.95=0
We move all terms containing r to the left, all other terms to the right
45.5r=123.95
r=123.95/45.5
r=2+16.8974358974/23.3333333333
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