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Simplifying -7r + 13 = -7.1 Reorder the terms: 13 + -7r = -7.1 Solving 13 + -7r = -7.1 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + -7r = -7.1 + -13 Combine like terms: 13 + -13 = 0 0 + -7r = -7.1 + -13 -7r = -7.1 + -13 Combine like terms: -7.1 + -13 = -20.1 -7r = -20.1 Divide each side by '-7'. r = 2.871428571 Simplifying r = 2.871428571
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