Algebra - Linear Equations - Lamar University Jun 02, 2018 · Section 2-2 : Linear Equations. We’ll start off the solving portion of this chapter by solving linear equations. A linear equation is any equation that can be written in the form \[ax + b = 0\] where \(a\) and \(b\) are real numbers and \(x\) is a variable. This form is sometimes called the standard form of a linear equation. Note that most ...