Mathematics, 14.01.2021 16:50 AnActualTrashcan

What is the determinant of the coefficient matrix of the system 9x+0y + 5z = 7 ?
6x+Oy-12z =

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What is the determinant of the coefficient matrix of the system 9x+0y + 5z = 7 ?
6x+Oy-12z =...