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16 February, 20:04

3x+2y=0

9x-24=2y

How can you order a ladder?

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Answers (1)
  1. 16 February, 20:12
    0
    Answer: x=2 and y=-3

    Because:

    Substitute the second equation for 2y into the first equation

    3x + 9x - 24 = 0

    12x - 24 = 0

    12x = 24

    x = 2

    3x + 2y = 0

    (3x2) + 2y = 0

    6 + 2y = 0

    2y = - 6

    y = - 3
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