How do you determine whether the given simplex tableau is in final form? If so, find the solution to the associated regular linear programming problem. If not, find the pivot element to be used in the next iteration of the simplex method.

x y z u v w P / Constant
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1/2 0 1/4 1 -1/4 0 0 / 19/2
1/2 0 3/4 0 1/4 0 0 / 21/2
2 0 3 0 0 1 0 / 30
____________________________________
-1 0 -1/2 6 3/2 0 1 / 63

Question

How do you determine whether the given simplex tableau is in final form? If so, find the solution to the associated regular linear programming problem. If not, find the pivot element to be used in the next iteration of the simplex method.

x       y      z      u      v      w     P   /  Constant
_________________________________________
1/2  0    1/4   1   -1/4    0     0   /  19/2
1/2  0    3/4   0     1/4    0     0   /  21/2
 2     0     3      0      0      1      0   /  30
____________________________________
-1    0   -1/2  6     3/2   0     1    /  63