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Simplifying 2r + 9 + -9r = 3 Reorder the terms: 9 + 2r + -9r = 3 Combine like terms: 2r + -9r = -7r 9 + -7r = 3 Solving 9 + -7r = 3 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -7r = 3 + -9 Combine like terms: 9 + -9 = 0 0 + -7r = 3 + -9 -7r = 3 + -9 Combine like terms: 3 + -9 = -6 -7r = -6 Divide each side by '-7'. r = 0.8571428571 Simplifying r = 0.8571428571
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