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Simplifying -8r + -9r + 2 = 0 Reorder the terms: 2 + -8r + -9r = 0 Combine like terms: -8r + -9r = -17r 2 + -17r = 0 Solving 2 + -17r = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -17r = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -17r = 0 + -2 -17r = 0 + -2 Combine like terms: 0 + -2 = -2 -17r = -2 Divide each side by '-17'. r = 0.1176470588 Simplifying r = 0.1176470588
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