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I hope you can help me to figure out what's wrong here. I want to minimize the sgen by varying xo2, xo3, xo4, xo5. There are 10 unknowns (xo2, xo3, xo4, xo5, mo2, mo3, mo4, mo5, delta_P, sgen), but since I have 5 equations for delta_P (eq. 1 to eq....