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Simplifying 2r + -13 = 17 Reorder the terms: -13 + 2r = 17 Solving -13 + 2r = 17 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + 2r = 17 + 13 Combine like terms: -13 + 13 = 0 0 + 2r = 17 + 13 2r = 17 + 13 Combine like terms: 17 + 13 = 30 2r = 30 Divide each side by '2'. r = 15 Simplifying r = 15
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