Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 9 - Systems and Matrices - 9.2 Matrix Solution of Linear Systems - 9.2 Exercises - Page 870: 10

Answer

$\left[\begin{array}{lll} 1 & 5 & 6\\ 0 & 19 & 26\\ 3 & 7 & 1 \end{array}\right]$

Work Step by Step

$\left[\begin{array}{lll} 1 & 5 & 6\\ -4+4(1) & -1+4(5) & 2+4(6)\\ 3 & 7 & 1 \end{array}\right]=\left[\begin{array}{lll} 1 & 5 & 6\\ 0 & 19 & 26\\ 3 & 7 & 1 \end{array}\right]$
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.

GradeSaver will pay $15 for your literature essays
GradeSaver will pay $25 for your college application essays
GradeSaver will pay $50 for your graduate school essays – Law, Business, or Medical
GradeSaver will pay $10 for your Community Note contributions
GradeSaver will pay $500 for your Textbook Answer contributions