In a way, single variable equations are some of the most common and *least* common types of questions on the SAT math section. Why? Because it’s rare to find more than one or two single variable equations per test, and yet **knowing how to solve and manipulate single variable equations is a basic requirement for solving most all SAT math questions.**

Even though you won’t often see single variable equations by themselves, it is crucial that you know how to set up, use, and manipulate them. You cannot solve the more complex expressions like quadratics, multiple variables, and so on, without first understanding single variable equations.

**This guide will be your complete walk-through of single variable equations for the SAT**--what they are, how you’ll see them on the test, and how to set up and solve them.