Compute the time trajectory and the long term behaviour of the price for the following three cobweb model problems. Do a graphical representation of...

I would like some help with this dynamical system math problem. I have solved it by myself but need some further help to know if its correct. I also need to put it into an excel to guess the solution to the equation. I was wondering what equation i have to put in excel? As of now i have put the general solution but this does not give me any good answers for t, and does not find me the equilibrium which i also have to analyze in excel. I have atteched one image of the excel as well so you can see what i mean.

As you can see i have tried to put the general solution i have found, but it doesnt give me any good answers while guessing t. Please let me know what i have done wrong. Maybe my general solution is wrong?

Thank you.

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135. Compute the time trajectory and the long term behaviour of the price for the following three cobwebmodel problems. Do a graphical representation of the dynamics of the model.135.1. Qat = 18 - 3P, Qst = -3+4P;-1, Po = 6.135.2. Qat = 22 - 3Pf, Qst = -2 + Pr-1, Po = 4.135.3. Qat = 19 -3Pt, Ost = -5+6P-1, Po = 5.