Tabel til DK-opgave 11

z x1 x2 x3 x4 x5 x6 RHS
1 0 -55/2 5/2 0 -7/2 0 -70
0 0 -1/2 1 1 -1/2 0 2
0 1 9/2 1/2 0 1/2 0 10
0 0 1/2 3/2 0 -1/2 1 20