# linear equation

### noun Mathematics.

a first-order equation involving two variables: its graph is a straight line in the Cartesian coordinate system.

any equation such that the sum of two solutions is a solution, and a constant multiple of a solution is a solution.

Compare linear operator.

## Origin of linear equation

First recorded in 1810–20

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## linear equation

### noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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## linear equation

The American Heritage® Science Dictionary
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