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: 15


$$\begin{bmatrix} 2&-1&\vdots &7\\ 1 & 1 &\vdots &2 \end{bmatrix}$$

Work Step by Step

In order to write a matrix that would solve this linear equation, we write the coefficients of each variable in their own column. Doing this, we find: $$\begin{bmatrix} 2&-1&\vdots &7\\ 1 & 1 &\vdots &2 \end{bmatrix}$$
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