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Simplifying 50.2 = 3.14(2) * r Multiply 3.14 * 2 50.2 = 6.28r Solving 50.2 = 6.28r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-6.28r' to each side of the equation. 50.2 + -6.28r = 6.28r + -6.28r Combine like terms: 6.28r + -6.28r = 0.00 50.2 + -6.28r = 0.00 Add '-50.2' to each side of the equation. 50.2 + -50.2 + -6.28r = 0.00 + -50.2 Combine like terms: 50.2 + -50.2 = 0.0 0.0 + -6.28r = 0.00 + -50.2 -6.28r = 0.00 + -50.2 Combine like terms: 0.00 + -50.2 = -50.2 -6.28r = -50.2 Divide each side by '-6.28'. r = 7.993630573 Simplifying r = 7.993630573
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