Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 4 - Section 4.4 - Solving Systems of Equations by Matrices - Exercise Set - Page 240: 39

Answer

One issue is that the second number in the first row is wrong. There should be a $-3$ instead of $3$.

Work Step by Step

Another issue is that the coefficient for $x$ in the second row is wrong. It should be $1$ instead of $0$ since there is an $x$ in the second equation.
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