Solve the problem. The network in the figure shows the traffic flow (in vehicles per hour) over several one-way streets in the downtown area of a certain city during a typical lunch time. Determine...

Extracted text: Solve the problem. The network in the figure shows the traffic flow (in vehicles per hour) over several one-way streets in the downtown area of a certain city during a typical lunch time. Determine the general flow pattern for the network. In other words, find the general solution of the system of equations that describes the flow. In your general solution let x4 be free. 200 700 400 X1 X5 X4 600 300 Y 100 Select one: A.x'= 600 - x 4 2_ 4 3 = 400 - x = 300 + x 4is free= 300 X X B.x'= 600 - x* = 400 + x*= 300 - x* *is free= 300 X X 4 3 4 is free= 200 C.x'= 500 + x* = 400 - x= 300 - x" 4 2 X X X D.x = 600 + x= 400 - x = 300 - x 5 3 54 300 is free X XX