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Simplifying 7 = (3.14) * r Solving 7 = 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 + -3.14r = 3.14r + -3.14r Combine like terms: 3.14r + -3.14r = 0.00 7 + -3.14r = 0.00 Add '-7' to each side of the equation. 7 + -7 + -3.14r = 0.00 + -7 Combine like terms: 7 + -7 = 0 0 + -3.14r = 0.00 + -7 -3.14r = 0.00 + -7 Combine like terms: 0.00 + -7 = -7 -3.14r = -7 Divide each side by '-3.14'. r = 2.229299363 Simplifying r = 2.229299363
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