1.

If 12x +17y= 48 and 17x + 12y= 68, then what is the value of x -y?

Answer»

First Subtract Both the equations.17x + 12y =68-12x - 17y =-48___________5x -5y =205(x-y)=20x-y=20/5x-y=4



Discussion

No Comment Found