Chapter 7.4, Problem 26E

To determine

To find: The matrix $\left[\begin{array}{l}a\\ b\end{array}\right]$ that represents the last year customers of two companies such that $\left[\begin{array}{cc}\frac{3}{5}& \frac{1}{3}\\ \frac{2}{5}& \frac{2}{3}\end{array}\right]\left[\begin{array}{l}a\\ b\end{array}\right]=\left[\begin{array}{l}A\\ B\end{array}\right]$ gives the customers present this year.