soluzione
degenere
−min z = -2x
1
− x
2
x
1
+ x
2
+ x
3
= 5 (1)
−x
1
+ x
2
+ x
4
= 0 (2)
6x
1
+ 2x
2
+ x
5
= 21 (3)
x
i
≥ 0
P
1
P
2
P
3
P
4
x
1
x
2
X
(3)
(2)
(1)
x
B
7
=
2
4
x
x
3
4
x
5
3
5 = A
1
B
7
b =
2
4
1 0 0
0 1 0
0 0 1
3
5
2
4
5
0
21
3
5 =
2
4
5
0
21
3
5 =) P
1
x
B
5
=
2
4
x
x
1
3
x
5
3
5 = A
1
B
5
b =
2
4
0
1
1
1 0
0
0
6
1
3
5
2
4
5
0
21
3
5 =
2
4
0
5
21
3
5 =) P
1
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x
B
6
=
2
4
x
x
2
3
x
5
3
5 = A
1
B
6
b =
2
4
0
1
1
1 0
0
0
2 1
3
5
2
4
5
0
21
3
5 =
2
4
0
5
21
3
5 =) P
1
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x =
2
6
6
6
6
4
0
0
5
0
21
3
7
7
7
7
5
x
1
x
2
x
3
x
4
x
5
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