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Simplifying -3r + 20 = 15r + -8 Reorder the terms: 20 + -3r = 15r + -8 Reorder the terms: 20 + -3r = -8 + 15r Solving 20 + -3r = -8 + 15r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-15r' to each side of the equation. 20 + -3r + -15r = -8 + 15r + -15r Combine like terms: -3r + -15r = -18r 20 + -18r = -8 + 15r + -15r Combine like terms: 15r + -15r = 0 20 + -18r = -8 + 0 20 + -18r = -8 Add '-20' to each side of the equation. 20 + -20 + -18r = -8 + -20 Combine like terms: 20 + -20 = 0 0 + -18r = -8 + -20 -18r = -8 + -20 Combine like terms: -8 + -20 = -28 -18r = -28 Divide each side by '-18'. r = 1.555555556 Simplifying r = 1.555555556
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