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18 April, 21:37

What is - 8x - 2y = - 4 when y equals - 5x

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Answers (2)
  1. 18 April, 22:06
    0
    -8x - 2y = - 4

    When y = - 5x

    -8x - 2 (-5x) = - 4

    - 8x + 10x = - 4

    2x = - 4

    x = - 4/2 = - 2
  2. 18 April, 23:35
    0
    -8x - 2y = - 4; y = - 5x

    -8x - 2 (-5x) = - 4

    -8x + 10x = - 4

    2x = - 4

    2x/2 = - 4/2

    x = - 4/2 = - 2/1 = - 2

    x = - 2
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