This online linear simultaneous equation solver will solve for x and y. When you have two unknowns x and y then this is the calculator to use.
Using a Calculator
What is the world coming to? In my days, we had to solve these equations by hand using our brains, but these days students are more interested in finding readymade programs and apps to load in their Ti-89 and Ti-84 calculators so that they can use it in the exams.