From the above it is evident that there is a space in the paint. Which was surrounded by a line of terms and conditions at any point (x, y) in an area that is consistent with both conditions. The solution of the problem must be a point (x, y) in this area. And by inte-point lead angle formed by the intersection of inequality limits to replace the values that will ........................ .. so. The solution for a maximum example of this is the point (1.5,2.5) and a maximum value of 13.5.