1) Using what you know already how do you think we would find which x and y will solve these two equations at the same time?
3x + 4y = 13
-4x + 3y = 23
2) What would the solutions to this system of equations look like?
3) Solve
4x + 3y = 17
10x - 3y = 11
4) Play with the app changing the coffiecents and see if you end up with two equations which:
a) has one solution
b) has no solutions
c) has infinite solutions

5) Write out in a paragraph what you discovered by playing with the app.