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Simplifying 5r + 12 = 28 + -3r Reorder the terms: 12 + 5r = 28 + -3r Solving 12 + 5r = 28 + -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. 12 + 5r + 3r = 28 + -3r + 3r Combine like terms: 5r + 3r = 8r 12 + 8r = 28 + -3r + 3r Combine like terms: -3r + 3r = 0 12 + 8r = 28 + 0 12 + 8r = 28 Add '-12' to each side of the equation. 12 + -12 + 8r = 28 + -12 Combine like terms: 12 + -12 = 0 0 + 8r = 28 + -12 8r = 28 + -12 Combine like terms: 28 + -12 = 16 8r = 16 Divide each side by '8'. r = 2 Simplifying r = 2
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