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Definition

Linear Equation in Three Variables

A linear equation involving three variables is an algebraic expression that can be written in the standard form ax+by+cz=dax + by + cz = d. In this structure, the coefficients aa, bb, cc, and the constant dd must be real numbers, with the additional restriction that aa, bb, and cc cannot all simultaneously be equal to 00.

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Updated 2026-04-29

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Intermediate Algebra @ OpenStax

Ch.4 Systems of Linear Equations - Intermediate Algebra @ OpenStax

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