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Simplifying 68(2r + 5) = 72 Reorder the terms: 68(5 + 2r) = 72 (5 * 68 + 2r * 68) = 72 (340 + 136r) = 72 Solving 340 + 136r = 72 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-340' to each side of the equation. 340 + -340 + 136r = 72 + -340 Combine like terms: 340 + -340 = 0 0 + 136r = 72 + -340 136r = 72 + -340 Combine like terms: 72 + -340 = -268 136r = -268 Divide each side by '136'. r = -1.970588235 Simplifying r = -1.970588235
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