Example

Example: Writing a System of Equations from an Augmented Matrix

Consider an augmented matrix where each row represents a single equation and the vertical line replaces the equal sign. For a matrix with three rows and four columns (which translates to a system of three equations with three variables), such as: [433112122134]\left[\begin{array}{ccc|c} 4 & -3 & 3 & -1 1 & 2 & -1 & 2 -2 & -1 & 3 & -4 \end{array}\right] By assigning each column on the left to a variable (e.g., xx, yy, zz) and the column on the right to the constants, the matrix translates directly into the following system: {4x3y+3z=1x+2yz=22xy+3z=4\left\{\begin{array}{l} 4x - 3y + 3z = -1 x + 2y - z = 2 -2x - y + 3z = -4 \end{array}\right.

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Updated 2026-06-03

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