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Matrix algebra and systems of equations

Recognise the general form of a system of linear equations in several variables and use Gaussian techniques of elimination on an augmented matrix to solve a system of linear equations, with and without technology.

u3-t5-s1-d5

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Gaussian elimination step by step

explainer

Walk an augmented 3×3 system through swap, scale, and eliminate to row echelon form (REF), with the equations alongside and pivots highlighted.

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