Question 303213
I do believe that there is not enough information here...when you have 3 variables you should have 3 equations in order to solve.

as stated x,y, z can be anything I want...

The equation works if x=1, y=1 z=30  or x=2, y=2, z=10..

So was there more information than just the single equation?  If so please post the question again...