Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 10 - 10.1 - Matrices and Systems of Equations - 10.1 Exercises - Page 709: 24

Answer

$$4x-5y-z=18 \\ -11x+6z=25 \\ 3x+8y=-29$$

Work Step by Step

In order to write a matrix that would solve a linear equation, we would write the coefficients of each variable in their own column. Thus, we reverse the process to find: $$4x-5y-z=18 \\ -11x+6z=25 \\ 3x+8y=-29$$
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