Do only question 3 please by using Matlab, Gusek, and Octeve

show the scripts(code) and the optimal solutions

Consider the LP (1)-(5). min zeta = 6x_1 + 8x_2 - 6x_3 - x_4 s.t. 9x_1 - x_3 + 3x_2 - x_4 lessthanorequalto 30 17x_1 + x_2 - 2x_4 greaterthanorequalto -20 4x_1 + x_4 + 6x_3 - 5x_2 = 6.7 -3 lessthanorequalto x_1 lessthanorequalto 15, x_2 greaterthanorequalto 6.5, x_3 lessthanorequalto -2, x_4 free. Reformulate LP (1)-(5) to the following matrix form min_x {c^T x: lb lessthanorequalto Ax lessthanorequalto ub, lx lessthanorequalto x lessthanorequalto ux}. What are the parameters A, lb, ub, c, lx, ux for this matrix form? Solve the LP (1)-(5) using Gusek, Matlab linprog, and Octave glpk. Submit screenshots of your codes and outputs (showing the optimal solution and the optimal objective value). Solve the LP (1)-(5) with x_1 and x_4 required to be integers using Gusek, Matlab intlinprog, and Octave glpk. Submit screenshots of your codes and outputs (showing the optimal solution and the optimal objective value)