Is there an easy way to solve system of equations using elimination?
There is a way, called “The Gaussian Elimination Method”. Here is a wikipedia page on the topic: http://en.wikipedia.org/wiki/Gaussian_elimination Also, there is an enhanced version, called the Gauss-Jordan Elimination Method. I strongly urge you to go youtube.com and search for videos on how to do it and what to do to avoid potential problems with the method. There are lots of videos on the topic.
