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Simplifying 5r + -20 = 3r + 18 Reorder the terms: -20 + 5r = 3r + 18 Reorder the terms: -20 + 5r = 18 + 3r Solving -20 + 5r = 18 + 3r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-3r' to each side of the equation. -20 + 5r + -3r = 18 + 3r + -3r Combine like terms: 5r + -3r = 2r -20 + 2r = 18 + 3r + -3r Combine like terms: 3r + -3r = 0 -20 + 2r = 18 + 0 -20 + 2r = 18 Add '20' to each side of the equation. -20 + 20 + 2r = 18 + 20 Combine like terms: -20 + 20 = 0 0 + 2r = 18 + 20 2r = 18 + 20 Combine like terms: 18 + 20 = 38 2r = 38 Divide each side by '2'. r = 19 Simplifying r = 19
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