Draw the Network for This Transportation Problem

Essay

Draw the network for this transportation problem. $$\begin{array} { l l } \text { Min } & 2 X _ { A X } + 3 X _ { A Y } + 5 X _ { A Z } + 9 X _ { E X } + 12 X _ { E Y } + 10 X _ { B Z } \\\text { s.t. } & X _ { A X } + X _ { A Y } + X _ { A Z } \leq 500 \\& X _ { B X } + X _ { B Y } + X _ { B Z } \leq 400 \\& X _ { A X } + X _ { B X } = 300 \\& X _ { A Y } + X _ { B Y } = 300 \\& X _ { A Z } + X _ { B Z } = 300 \\& X _ { \mathrm { Bj } } \geq 0\end{array}$$