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Concept

Linear Equation

A linear equation is an equation with at least one linear term and any number of constants. No other types of terms may be included. Linear equations in one variable have the following form, where and are real numbers and

Linear equations in two variables have the form below, where and are real numbers and and

Assume that either or is zero. In this case, the equation above becomes a linear equation in one variable. The graph of a linear equation is a line.