For the standard minimum problem: Minimize z=8x_1+4x_2+9x_3, subject to

x_1+2x_2+5x_3=>40
3x_1+4x_2+x_3=>50
2x_1+6x_2+7x_3=>60
x_1^3 0, x_2 ^3 0, x_3=>0 My answer is:

1 2 5 1 0 0 0 40
3 4 1 0 1 0 0 50
2 6 7 0 0 1 0 60
8 4 9 0 0 0 1 0 Is this right, thanks again for any help given. I do think there is a typo where ^3 and ^3 in the last line.