Answer
All the real numbers except $3$.
Work Step by Step
We must exclude the values for which the denominator is $0$, thus $x\ne3$. Thus the domain is all the real numbers except $3$.
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 3 - Section 3.2 - Problem Solving and Business Applications Using Systems of Equations - Exercise Set - Page 208: 73
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