Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 8 - Systems of Linear Equations and Problem Solving - 8.6 Elimination Using Matrices - 8.6 Exercise Set - Page 551: 11



Work Step by Step

Solving the system of equations using Matrices, we find: $$ \begin{bmatrix}6&-2&¦&4\\ 7&1&¦&13\end{bmatrix}\\ \begin{bmatrix}1&0&¦&\frac{3}{2}\\ 0&1&¦&\frac{5}{2}\end{bmatrix}\\ x=\frac{3}{2},\:y=\frac{5}{2}$$
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