Linear-equation
noun, Mathematics.
1.
a first-order equation involving two variables: its graph is a straight line in the Cartesian coordinate system.
2.
any equation such that the sum of two solutions is a solution, and a constant multiple of a solution is a solution.
noun
1.
a polynomial equation of the first degree, such as x + y = 7
linear equation
An algebraic equation, such as y = 4x + 3, in which the variables are of the first degree (that is, raised only to the first power). The graph of such an equation is a straight line.
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