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 - Review Exercises: Chapter 8 - Page 571: 16



Work Step by Step

Solving the equations using elimination, we find: $$ \begin{bmatrix}15x-25y=45\\ 15x-9y=-3\end{bmatrix}\\ 16y=-48\\ y=-3,\:x=-2$$
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