You can put this solution on YOUR website! First of all, that is not an equation; second of all, you can't "solve" it. You could expand it, yielding but that's about all you can do with it.
You can put this solution on YOUR website! I think you wanted to factor, where the solution would have been:
(y+z)^3 is a sum of cubes, and gives us (y+z) (y^2-yz+z^2)