College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 6 - Matrices and Determinants - Exercise Set 6.4 - Page 639: 35


$\left\{\begin{array}{l} 2x-z=6\\ 3y=9\\ x+y=5 \end{array}\right.$

Work Step by Step

The product on the LHS is between a $3\times\underline{3}$ and a $\underline{3}\times$1 matrix, resulting in a $3\times 1$ matrix: $\left[\begin{array}{l} 2x+0y-1z\\ 0x+3y+0z\\ 1x+1y+0z \end{array}\right]$ Equating matrices, (equating corresponding elements), we have the system $\left\{\begin{array}{l} 2x-z=6\\ 3y=9\\ x+y=5 \end{array}\right.$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.