Solving systems of linear algebra with Wolfram Alpha

I recently needed to verify an answer to some problems I was solving at the time, and for that, I used Wolfram Alpha.

Say we want to graph the following system of equations:

The syntax would be:

solve 2x + y = 3 , x - 3y = 0

The general format would be:

solve <equation 1>, <equation 2>, ... , <equation n>

And the search engine will provide you with something like this: