Mathematics, 01.10.2021 01:20 jackchelly

X + 2y - z = -2
2x -8y + z = -7
-2x + 12y - 3z = 7

Answers: 3

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X + 2y - z = -2
2x -8y + z = -7
-2x + 12y - 3z = 7...