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Simplifying 3r + 3(r + 1) = 297 Reorder the terms: 3r + 3(1 + r) = 297 3r + (1 * 3 + r * 3) = 297 3r + (3 + 3r) = 297 Reorder the terms: 3 + 3r + 3r = 297 Combine like terms: 3r + 3r = 6r 3 + 6r = 297 Solving 3 + 6r = 297 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 6r = 297 + -3 Combine like terms: 3 + -3 = 0 0 + 6r = 297 + -3 6r = 297 + -3 Combine like terms: 297 + -3 = 294 6r = 294 Divide each side by '6'. r = 49 Simplifying r = 49
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