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Simplifying -5r + -2r = 17 Combine like terms: -5r + -2r = -7r -7r = 17 Solving -7r = 17 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Divide each side by '-7'. r = -2.428571429 Simplifying r = -2.428571429
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