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Simplifying r2 + 40 + -13 = 0 Reorder the terms: 40 + -13 + r2 = 0 Combine like terms: 40 + -13 = 27 27 + r2 = 0 Solving 27 + r2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-27' to each side of the equation. 27 + -27 + r2 = 0 + -27 Combine like terms: 27 + -27 = 0 0 + r2 = 0 + -27 r2 = 0 + -27 Combine like terms: 0 + -27 = -27 r2 = -27 Simplifying r2 = -27 Reorder the terms: 27 + r2 = -27 + 27 Combine like terms: -27 + 27 = 0 27 + r2 = 0 The solution to this equation could not be determined.
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