reset;

option solver cplex;            # solver choice

var x1 >= 0;					# variable 1
var x2 >= 2;					# variable 2

maximize LP: 4*x1 + 3*x2; 		# objective

subject to NB1:	2*x2 <= 25-x1;	# constraint 1
subject to NB2:	4*x2 >= 2*x1-8;	# constraint 2
subject to NB3:	  x2 <= 2*x1-5;	# constraint 2
 
solve;	   						# solution

display x1,x2;	   				# output