# declare the variables and their bounds
var x1 >= 0;
var x2 >= 0;

# specify the objective function
minimize obj:
    -250 * x1 - 400 * x2 + 15000;
        
# specify the constraints
s.t.
  inequality1:
    x1 + 2*x2 <= 170;
  inequality2:
    x1 + x2 <= 150;