This video follows directly on from Linear Equations. It shows how to take two linear equations and solve them together to get a single value for the two variables (which are usually x and y, but could be any two letters). When we think about this process graphically, we are finding the point where the two lines intercept. This is called solving simultaneous equations. Keep in mind that in Australia this topic is known as simultaneous equations, but in other countries it is often referred to as “solving a system of equations”.
If you haven't watched Linear Equations yet, take a look at that video first, then come back.