A

B

C

Supply

U_i

1

10

(20)

12 11

1

9

(20)

40

U₁ =0

2

4

(50)

5 5

0

7 3

4

50

U₂ = -6

3

11 7

4

8

(50)

6

(10)

60

U₃ = −3

Demand

70

50

30

V_j

V₁ =10

V₂ = 11

V₃ = 9