You can put this solution on YOUR website! here is a can of worms! Teaching you matrices on here will be really hard to do from a visual point of view.
I did write one other very basic explanation of how to do it a long time ago, so you can trawl through my 380-odd answers to find it.
Apart from that, I don't know how to help you on here really sorry since matrices is really a topic you need some good step by step visuals on or else you just lose the plot.
