05b Some more applications and examples.
05a More examples of parametrized solutions.
07 Geometric interpretation of simple linear systems -- hyperplanes.
05 Pivots, free variables, unique solutions, parametrized solutions, no solutions.
06b Further understanding: Solving system of linear equations in different fields.
06 Outcome of a linear system, and number of solutions.
06a Further understanding: Fields and other scalars of choice.
03a Further understanding: Equivalence relations.
02 Solving linear equations, a first look: Echelon form and elementary row operations.
01 System of linear equations.
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