How to edit a linear programming as the following:
Max z = x1 + 12x2 s.t. 3x1 + x2 + 12x3 ≤ 5 x1 + x3 ≤ 16 15x1 + x2 = 14 xj ≥ 0, j=1,2,3.
I want the format to be strictly like the example.
Thanks for all the answers below. What I need is just like the picture as following