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Simplifying -3r + -8 = -5r + 12 Reorder the terms: -8 + -3r = -5r + 12 Reorder the terms: -8 + -3r = 12 + -5r Solving -8 + -3r = 12 + -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 = 12 + -5r + 5r Combine like terms: -3r + 5r = 2r -8 + 2r = 12 + -5r + 5r Combine like terms: -5r + 5r = 0 -8 + 2r = 12 + 0 -8 + 2r = 12 Add '8' to each side of the equation. -8 + 8 + 2r = 12 + 8 Combine like terms: -8 + 8 = 0 0 + 2r = 12 + 8 2r = 12 + 8 Combine like terms: 12 + 8 = 20 2r = 20 Divide each side by '2'. r = 10 Simplifying r = 10
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