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Simplifying x2 + -24r + 84 = 0 Reorder the terms: 84 + -24r + x2 = 0 Solving 84 + -24r + x2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-84' to each side of the equation. 84 + -24r + -84 + x2 = 0 + -84 Reorder the terms: 84 + -84 + -24r + x2 = 0 + -84 Combine like terms: 84 + -84 = 0 0 + -24r + x2 = 0 + -84 -24r + x2 = 0 + -84 Combine like terms: 0 + -84 = -84 -24r + x2 = -84 Add '-1x2' to each side of the equation. -24r + x2 + -1x2 = -84 + -1x2 Combine like terms: x2 + -1x2 = 0 -24r + 0 = -84 + -1x2 -24r = -84 + -1x2 Divide each side by '-24'. r = 3.5 + 0.04166666667x2 Simplifying r = 3.5 + 0.04166666667x2
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