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Simplifying 55.96 = 3.14159r * 8.5 Reorder the terms for easier multiplication: 55.96 = 3.14159 * 8.5r Multiply 3.14159 * 8.5 55.96 = 26.703515r Solving 55.96 = 26.703515r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-26.703515r' to each side of the equation. 55.96 + -26.703515r = 26.703515r + -26.703515r Combine like terms: 26.703515r + -26.703515r = 0.000000 55.96 + -26.703515r = 0.000000 Add '-55.96' to each side of the equation. 55.96 + -55.96 + -26.703515r = 0.000000 + -55.96 Combine like terms: 55.96 + -55.96 = 0.00 0.00 + -26.703515r = 0.000000 + -55.96 -26.703515r = 0.000000 + -55.96 Combine like terms: 0.000000 + -55.96 = -55.96 -26.703515r = -55.96 Divide each side by '-26.703515'. r = 2.095604268 Simplifying r = 2.095604268
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