You can put this solution on YOUR website! I'm not sure what your problem is so I'll solve both possible interpretations:
Problem 1:
First let's make everything a fraction (with the idea a cross-canceling and then multiplying afterwards):
Factor and cross-cancel common factors:
leaving
Multiplying we get:
Problem 2:
We can use the Commutative and Associative Properties to rearrange and regroup the factors as we please. So we will gather the constant factors, the x's and the y's into separate groups:
Simplifying each group we get: