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(19.8-r)6.2=37.7r-49.2
We simplify the equation to the form, which is simple to understand
(19.8-r)6.2=37.7r-49.2
Reorder the terms in parentheses
(+122.76-6.2r)=37.7r-49.2
Remove unnecessary parentheses
+122.76-6.2r=37.7r-49.2
We move all terms containing r to the left and all other terms to the right.
-6.2r-37.7r=-49.2-122.76
We simplify left and right side of the equation.
-43.9r=-171.96
We divide both sides of the equation by -43.9 to get r.
r=3.9170842824601
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