Answer
Never
Work Step by Step
If this equation is solved, we will find that $x=a$ is a solution. Though this solution is going to be extraneous since it will make the denominator of a fraction 0, there is still a solution (at least initially).
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 8 Rational Functions - 8.6 Solve Rational Equations - 8.6 Exercises - Skill Practice - Page 593: 32
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