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Simplifying 12 = 3.14r Solving 12 = 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. 12 + -3.14r = 3.14r + -3.14r Combine like terms: 3.14r + -3.14r = 0.00 12 + -3.14r = 0.00 Add '-12' to each side of the equation. 12 + -12 + -3.14r = 0.00 + -12 Combine like terms: 12 + -12 = 0 0 + -3.14r = 0.00 + -12 -3.14r = 0.00 + -12 Combine like terms: 0.00 + -12 = -12 -3.14r = -12 Divide each side by '-3.14'. r = 3.821656051 Simplifying r = 3.821656051
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