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Simplifying rx2 + -8 + 11 = 0 Reorder the terms: -8 + 11 + rx2 = 0 Combine like terms: -8 + 11 = 3 3 + rx2 = 0 Solving 3 + rx2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + rx2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + rx2 = 0 + -3 rx2 = 0 + -3 Combine like terms: 0 + -3 = -3 rx2 = -3 Divide each side by 'x2'. r = -3x-2 Simplifying r = -3x-2
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