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1 January, 02:21

5x + 1y + 4z=-1

4x + 6y + 9z = - 68

9x + 1y + 4z = 27

Select one:

(7,-4, - 8)

(-4,-8, 7)

(-8, - 7, - 4)

(-7,4, - 8)

(-7, - 4, - 8)

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Answers (1)
  1. 1 January, 02:26
    0
    [7, - 4, - 8]

    Step-by-step explanation:

    Just simply plug in each choice into the equations to confirm their authenticities.
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