College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 6 - Matrices and Determinants - Exercise Set 6.4 - Page 640: 61

Answer

Find $A^{-1}$ and then multiply $A^{-1}$ and $B$ to find $X$.

Work Step by Step

The matrix form of a linear system of equations is $AX=B$, in which $A$ is the coefficient matrix and $B$ is the constant matrix. If $AX=B$ has a unique solution, then $X=A^{-1}B$. So, to solve a linear system of equations, find $A^{-1}$, and then multiply $A^{-1}$ and $B$ to find $X$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.