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Simplifying 9r + 3 = 7r + -11 Reorder the terms: 3 + 9r = 7r + -11 Reorder the terms: 3 + 9r = -11 + 7r Solving 3 + 9r = -11 + 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. 3 + 9r + -7r = -11 + 7r + -7r Combine like terms: 9r + -7r = 2r 3 + 2r = -11 + 7r + -7r Combine like terms: 7r + -7r = 0 3 + 2r = -11 + 0 3 + 2r = -11 Add '-3' to each side of the equation. 3 + -3 + 2r = -11 + -3 Combine like terms: 3 + -3 = 0 0 + 2r = -11 + -3 2r = -11 + -3 Combine like terms: -11 + -3 = -14 2r = -14 Divide each side by '2'. r = -7 Simplifying r = -7
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