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12 January, 09:22

X-y-4z=-9

4x-3y-2z=-9

-x-3y-6z=-7

solve

+2
Answers (1)
  1. 12 January, 09:30
    0
    (x, y, z) = (-2, - 1, 2)

    Step-by-step explanation:

    Your graphing calculator can usually solve systems of linear equations easily.
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