show every step with handwriting pleaseee

Question 3: Assume that the following Simplex Table shows the optimal solution of a minimization type LP model with 4 constraints. X1,X2, and X3 are the decision variables in our original model - S1 is the slack variable added to the first constraint. - E2 is the surplus variable added to the second constraint and A2 is the artificial constraint added to the second constraint, - S3 is the slack variable added to the third constraint, - A4 is the artificial variable added to the fourth constraint, Find the optimal values of dual variables Y1, Y2, Y3 and Y4 from the following optimal Simplex Tabie of our primal LP model. Y1=.Y2=.Y3=..Y4=