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Simplifying -8r + 6 + -5r = -30 Reorder the terms: 6 + -8r + -5r = -30 Combine like terms: -8r + -5r = -13r 6 + -13r = -30 Solving 6 + -13r = -30 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -13r = -30 + -6 Combine like terms: 6 + -6 = 0 0 + -13r = -30 + -6 -13r = -30 + -6 Combine like terms: -30 + -6 = -36 -13r = -36 Divide each side by '-13'. r = 2.769230769 Simplifying r = 2.769230769
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