Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 3 Linear Systems and Matrices - 3.8 Use Inverse Matrices to Solve Linear Systems - 3.8 Exercises - Quiz for Lessons 3.6-3.8 - Page 217: 5



Work Step by Step

Using Cramer's rule, we find: $$\det \begin{pmatrix}5&4\\ -2&-3\end{pmatrix} \\ 5\left(-3\right)-4\left(-2\right) \\ -7$$
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