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Simplifying 7.55 = 6.28 * 2r Multiply 6.28 * 2 7.55 = 12.56r Solving 7.55 = 12.56r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-12.56r' to each side of the equation. 7.55 + -12.56r = 12.56r + -12.56r Combine like terms: 12.56r + -12.56r = 0.00 7.55 + -12.56r = 0.00 Add '-7.55' to each side of the equation. 7.55 + -7.55 + -12.56r = 0.00 + -7.55 Combine like terms: 7.55 + -7.55 = 0.00 0.00 + -12.56r = 0.00 + -7.55 -12.56r = 0.00 + -7.55 Combine like terms: 0.00 + -7.55 = -7.55 -12.56r = -7.55 Divide each side by '-12.56'. r = 0.6011146497 Simplifying r = 0.6011146497
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