I have to solve the following problem via the Dual Simplex Method;
Min Z = x+y
-2x-y<4
x-2y>4
5x-3y>7
x,y>0
I managed to get in standard form;
Min Z=x+y
-2x-y+s1=4
-x+2y+s2=4
-5x+3y+s3=7
x,y,s1,s2,s3>0
Then I managed to generate the table in excell format however I wasn't able to put it up unfortunatly.
The problem is after using the first iteration using the Dual Simplex Method, when I find the ratio to move onto the 2nd interation, I get a negative ratio - so I am quite confused and I don't know how to move on from there. I would be grateful for some help.