Chapter 4.1, Problem 23E

Pivot once as indicated in each simplex tableau. Read the solution from the result.

23. $\begin{array}{l}{x}_1{x}_2{x}_3{s}_1{s}_2{s}_{3}z\\ \left[\begin{array}{rrrrrrrr}\hfill 2& \hfill 2& \hfill 3& \hfill 1& \hfill 0& \hfill 0& \hfill 0& \hfill 500\\ \hfill 4& \hfill 1& \hfill 1& \hfill 0& \hfill 1& \hfill 0& \hfill 0& \hfill 300\\ \hfill 7& \hfill 2& \hfill 4& \hfill 0& \hfill 0& \hfill 1& \hfill 0& \hfill 700\\ \hfill -3& \hfill -4& \hfill -2& \hfill 0& \hfill 0& \hfill 0& \hfill 1& \hfill 0\end{array}\right]\end{array}$