Chapter 1.1, Problem 22E

Suppose the matrix C in Exercise 20 is the augmented matrix for a system of linear equations. Display the system.

Display the $\left(2\times 4\right)$ matrix $C=\left(c_{ij}\right)$, where $c_{23}=4$, $c_{12}=2$, $c_{21}=2$, $c_{14}=1$, $c_{22}=2$, $c_{24}=3,c_{11}=1$, and $c_{13}=7$.