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Simplifying 5r + -12 = 2r + 12 Reorder the terms: -12 + 5r = 2r + 12 Reorder the terms: -12 + 5r = 12 + 2r Solving -12 + 5r = 12 + 2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2r' to each side of the equation. -12 + 5r + -2r = 12 + 2r + -2r Combine like terms: 5r + -2r = 3r -12 + 3r = 12 + 2r + -2r Combine like terms: 2r + -2r = 0 -12 + 3r = 12 + 0 -12 + 3r = 12 Add '12' to each side of the equation. -12 + 12 + 3r = 12 + 12 Combine like terms: -12 + 12 = 0 0 + 3r = 12 + 12 3r = 12 + 12 Combine like terms: 12 + 12 = 24 3r = 24 Divide each side by '3'. r = 8 Simplifying r = 8
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