By Cramer's Rule of determinants we know that we can solve the system of equations -6x y = 9 -3x 5y for x and y via, for some matrices A, M₁, M₂. (a) The matrix A above is: (b) The matrix M₁ above is: 31 (c) The matrix M₂ above is: (d) det A (e) det M₁ (f) detM₂ (g) x = 38 = = X = det M₁ det A 3 = 18 and y det M2 det A

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