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Simplifying 3r + -8 = 5r + -20 Reorder the terms: -8 + 3r = 5r + -20 Reorder the terms: -8 + 3r = -20 + 5r Solving -8 + 3r = -20 + 5r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-5r' to each side of the equation. -8 + 3r + -5r = -20 + 5r + -5r Combine like terms: 3r + -5r = -2r -8 + -2r = -20 + 5r + -5r Combine like terms: 5r + -5r = 0 -8 + -2r = -20 + 0 -8 + -2r = -20 Add '8' to each side of the equation. -8 + 8 + -2r = -20 + 8 Combine like terms: -8 + 8 = 0 0 + -2r = -20 + 8 -2r = -20 + 8 Combine like terms: -20 + 8 = -12 -2r = -12 Divide each side by '-2'. r = 6 Simplifying r = 6
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