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Simplifying 2600 = 2 * 3.14r * 37 Reorder the terms for easier multiplication: 2600 = 2 * 3.14 * 37r Multiply 2 * 3.14 2600 = 6.28 * 37r Multiply 6.28 * 37 2600 = 232.36r Solving 2600 = 232.36r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-232.36r' to each side of the equation. 2600 + -232.36r = 232.36r + -232.36r Combine like terms: 232.36r + -232.36r = 0.00 2600 + -232.36r = 0.00 Add '-2600' to each side of the equation. 2600 + -2600 + -232.36r = 0.00 + -2600 Combine like terms: 2600 + -2600 = 0 0 + -232.36r = 0.00 + -2600 -232.36r = 0.00 + -2600 Combine like terms: 0.00 + -2600 = -2600 -232.36r = -2600 Divide each side by '-232.36'. r = 11.18953348 Simplifying r = 11.18953348
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