I need this done through excel. I have trouble finding the Simple LP. ONLY THROUGH EXCEL PLS.

Show the network representation of this problem. 16. A rental car company has an imbalance of cars at seven of its locations. The following net. work shows the locations of concern (the nodes) and the cost to move a car between locitions. A positive number by a node indicates an excess supply at the node, and a negative number indicates an excess demand. a. Develop a linear programming model of this problem. b. Solve the model formulated in part (a) to determine how the cars should be redistributed among the locations