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A logistics analyst is auditing an efficiency formula modeled by the equation: x2x223x+3=5x22x+912x212\frac{x}{2x-2} - \frac{2}{3x+3} = \frac{5x^2-2x+9}{12x^2-12} After performing the algebraic steps correctly, the analyst identifies x=1x = 1 and x=1x = -1 as candidate solutions. However, because both of these values result in a zero denominator in the original formula, they are classified as ____ solutions.

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Updated 2026-04-18

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