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Simplifying 2(4 + 4r) + 3 = 63 (4 * 2 + 4r * 2) + 3 = 63 (8 + 8r) + 3 = 63 Reorder the terms: 8 + 3 + 8r = 63 Combine like terms: 8 + 3 = 11 11 + 8r = 63 Solving 11 + 8r = 63 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + 8r = 63 + -11 Combine like terms: 11 + -11 = 0 0 + 8r = 63 + -11 8r = 63 + -11 Combine like terms: 63 + -11 = 52 8r = 52 Divide each side by '8'. r = 6.5 Simplifying r = 6.5
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