Problem from the book Scheduling: Theory, Algorithms and Systems, Fifth Ed by Michael L Pinedo Chapter 2, problem 2.5. I posted this problem before here, but the person just gave me the answers of this problem and I didn't get the process to get the solution. Can you please do this problem by steps so I can see the process.

2.5. Find the optimal sequence for P5 || Cmax with the following 11 jobs. jobs 1 2 3 4 56 78 9 10 11 pj 9 9 8877665 5 5