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Simplifying 11r + 15 = 2r Reorder the terms: 15 + 11r = 2r Solving 15 + 11r = 2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2r' to each side of the equation. 15 + 11r + -2r = 2r + -2r Combine like terms: 11r + -2r = 9r 15 + 9r = 2r + -2r Combine like terms: 2r + -2r = 0 15 + 9r = 0 Add '-15' to each side of the equation. 15 + -15 + 9r = 0 + -15 Combine like terms: 15 + -15 = 0 0 + 9r = 0 + -15 9r = 0 + -15 Combine like terms: 0 + -15 = -15 9r = -15 Divide each side by '9'. r = -1.666666667 Simplifying r = -1.666666667
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