Answer
The second element in the first row should be $-3$, and the first element in the second row should be $1$.
Work Step by Step
The matrix didn't have the correct coefficients for those two elements.
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 9 - Section 9.2 - Solving Systems of Equations Using Matrices - Exercise Set - Page 649: 33
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