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Simplifying r2 + 16 + 64 = 0 Reorder the terms: 16 + 64 + r2 = 0 Combine like terms: 16 + 64 = 80 80 + r2 = 0 Solving 80 + r2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-80' to each side of the equation. 80 + -80 + r2 = 0 + -80 Combine like terms: 80 + -80 = 0 0 + r2 = 0 + -80 r2 = 0 + -80 Combine like terms: 0 + -80 = -80 r2 = -80 Simplifying r2 = -80 Reorder the terms: 80 + r2 = -80 + 80 Combine like terms: -80 + 80 = 0 80 + r2 = 0 The solution to this equation could not be determined.
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