Assignment number 1 home streach

I have now solved three problems including the final Fourier-Motzkin calculations. I can actually check my calculations using some software but I did the solutions by hand without a calculator of course. I now need to write up the steps by step pen and ink calculations with TeXShop and LaTeX code. Then that leaves 2 problems to still complete one of which is started. My solution for this unfinished problem has also been commented on by the professor so I know I am on the right track. I need to complete this work overnight now and I have no work tomorrow to make it easier to score A+ perfect on my homework.