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Simplifying 7.21 = 3.14r Solving 7.21 = 3.14r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-3.14r' to each side of the equation. 7.21 + -3.14r = 3.14r + -3.14r Combine like terms: 3.14r + -3.14r = 0.00 7.21 + -3.14r = 0.00 Add '-7.21' to each side of the equation. 7.21 + -7.21 + -3.14r = 0.00 + -7.21 Combine like terms: 7.21 + -7.21 = 0.00 0.00 + -3.14r = 0.00 + -7.21 -3.14r = 0.00 + -7.21 Combine like terms: 0.00 + -7.21 = -7.21 -3.14r = -7.21 Divide each side by '-3.14'. r = 2.296178344 Simplifying r = 2.296178344
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