Solving Linear Equations and Inequalities



Properties of equality describe actions that can be applied to an equation without changing its solution. Using these properties, an equation or inequality can be written in a form that makes it easy to identify the solution or solutions. Some equations or inequalities can be solved in one step, using a single property. Sometimes, though, it takes two or more steps to find the solution. Different types of equations have different numbers of solutions. Inequalities may have an infinite number of solutions, which are often shown on number lines.

At A Glance