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2.5(11.9r-2.9)=55.3
We move all terms to the left:
2.5(11.9r-2.9)-(55.3)=0
We add all the numbers together, and all the variables
2.5(11.9r-2.9)-55.3=0
We multiply parentheses
27.5r-7.25-55.3=0
We add all the numbers together, and all the variables
27.5r-62.55=0
We move all terms containing r to the left, all other terms to the right
27.5r=62.55
r=62.55/27.5
r=2+4.87096774194/17.7419354839
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