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7 July, 23:32

Use substitution method

8x=-2y-10

2x=4y

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Answers (1)
  1. 8 July, 01:16
    0
    2x = 4y

    x = (4y) / 2

    x = 2y

    8x = - 2y - 10

    8 (2y) = - 2y - 10

    16y + 2y = - 10

    18 y = - 10

    y = - 10/18

    y = - 5/9

    So, how x = 2y

    x = 2 (-5/9)

    x = - 10/9
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