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Simplifying 20 = 7r Solving 20 = 7r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7r' to each side of the equation. 20 + -7r = 7r + -7r Combine like terms: 7r + -7r = 0 20 + -7r = 0 Add '-20' to each side of the equation. 20 + -20 + -7r = 0 + -20 Combine like terms: 20 + -20 = 0 0 + -7r = 0 + -20 -7r = 0 + -20 Combine like terms: 0 + -20 = -20 -7r = -20 Divide each side by '-7'. r = 2.857142857 Simplifying r = 2.857142857
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