Linear equations of the type generated when we are solving systems of equations are very common in Geometry. These are typically equations in one variable, e.g. x . How do we go about solving for x ? Generally, we aim to isolate the variable by performing the same algebraic operation on both sides of the equation (algebraic properties of equality), thus simplifying the equation until we get to a answer. By the way, the methods discussed in this module apply to any equation in a single variable. Let's watch the video to examine some examples.