Short Answer

Final Validation in Rational Equation Modeling

An HVAC technician is using the rational equation $1 - \frac{5}{y} = -\frac{6}{y^2}tocalculatethepressureto calculate the pressureywithinaventilationsystem.Afterperformingthealgebraicwork,thetechnicianfindsthepotentialsolutionswithin a ventilation system. After performing the algebraic work, the technician finds the potential solutionsy = 2andandy = 3$. According to the standard five-step strategy for solving rational equations, identify the name of the final step that must be performed to verify these results. Additionally, provide the specific mathematical term for a solution that must be rejected because it makes the original equation undefined.

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Updated 2026-04-18

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