An explanation of how to use Cramer's rule to solve a system of 3 equations in 3 variables by using the determinant (the difference of the cross-products of a 2x2 matrix).
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Algebra II Playlist
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Algebra II 13.3c, Determinants of 3X3 Matrices
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Algebra II 13.3b, Cramer's Rule for 2 Equations in 2 Variables
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Algebra II 13.3a, Determinants of 2X2 Matrices
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Algebra II 13.2b, Subtract Matrices, Find Additive Inverses
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Algebra II 13.2a, Matrix Addition and Zero Matrices
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Algebra II 13.1b, Solve Systems of Equations using Matrices
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Algebra II 13.1a, Dimensions of a Matrix, Columns & Rows
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