- The definition of a linear equation is an algebraic equation in which each term has an exponent of one and the graphing of the equation results in a straight line.
An example of linear equation is y=mx + b.

## linear equation

an algebraic equation whose variable quantity or quantities are in the first power only and whose graph is a straight line (Ex.: 2x + 3y - 5 = 0)

## linear equation

noun

An algebraic equation, such as

*y*= 2*x*+ 7 or 3*x*+ 2*y*−*z*= 4, in which the highest degree term in the variable or variables is of the first degree. The graph of such an equation is a straight line if there are two variables.## linear equation

Noun

(*plural* linear equations)

- (mathematics) A polynomial equation of the first degree (such as x = 2y - 7)