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Simplifying -2(r + -5) = -23 Reorder the terms: -2(-5 + r) = -23 (-5 * -2 + r * -2) = -23 (10 + -2r) = -23 Solving 10 + -2r = -23 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -2r = -23 + -10 Combine like terms: 10 + -10 = 0 0 + -2r = -23 + -10 -2r = -23 + -10 Combine like terms: -23 + -10 = -33 -2r = -33 Divide each side by '-2'. r = 16.5 Simplifying r = 16.5
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