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Simplifying r * r + 15 = -17 Multiply r * r r2 + 15 = -17 Reorder the terms: 15 + r2 = -17 Solving 15 + r2 = -17 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + r2 = -17 + -15 Combine like terms: 15 + -15 = 0 0 + r2 = -17 + -15 r2 = -17 + -15 Combine like terms: -17 + -15 = -32 r2 = -32 Simplifying r2 = -32 Reorder the terms: 32 + r2 = -32 + 32 Combine like terms: -32 + 32 = 0 32 + r2 = 0 The solution to this equation could not be determined.
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