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X + y = - 4

y = 3x + 16

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Answers (2)
  1. 1 June, 01:41
    0
    -4-x=3x+16

    -4=4x+16

    4x=-20

    x=-5
  2. 1 June, 01:57
    0
    If

    x+y=-4

    y-3x=16 or we cn write as

    x+y=-4

    -3x+y=16

    i multiply the first equation by 3

    3x+3y=-12

    -3x + y=16

    4y=4

    y=1

    x+1=-4

    x=-5
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