As a result of investigating the solution of a linear decision model with the objective function max z = -x1+2x2+2x3 with the Simplex algorithm, the final Simplex table given below was obtained. (Variables S1 and S2 are idle variables added to the model). Write the general solution for the model using the table. Z X2 X3 X4 Si S2 ST 1 0 0 3 0 7 2 9 0 0 1 2 -1 3 2 5 0 1 0 -1 -2 -1 2 1