Khan Academy Static

This tutorial is a bit of an excursion back to you Algebra II days when you first solved systems of equations (and possibly used matrices to do so). In this tutorial, we did a bit deeper than you may have then, with emphasis on valid row operations and getting a matrix into reduced row echelon form.

6902_Solving_linear_systems_with_matrices.html

6903_Using_matrix_row_echelon_form_in_order_to_show_a_linear_system_has_no_solutions.html

6901_Solving_a_system_of_3_equations_and_4_variables_using_matrix_row_echelon_form.html