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3.7(8.3r-7.5)=54.8
We move all terms to the left:
3.7(8.3r-7.5)-(54.8)=0
We add all the numbers together, and all the variables
3.7(8.3r-7.5)-54.8=0
We multiply parentheses
29.6r-27.75-54.8=0
We add all the numbers together, and all the variables
29.6r-82.55=0
We move all terms containing r to the left, all other terms to the right
29.6r=82.55
r=82.55/29.6
r=2+17.2962962963/21.9259259259
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