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23 January, 05:56

Solve using elimination

-8x - 7y = 7

-9x - 7y = 14

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Answers (2)
  1. 23 January, 08:48
    0
    X=-7 is what I got : /.
  2. 23 January, 08:53
    0
    -9x - (-8x-7) = 14

    -9x + 8x + 7 = 14

    -x + 7 = 14

    7 = 14 + x

    X = - 7

    (-8 x - 7) - 7y = 7

    56 - 7y = 7

    56-7 = 7y

    49 = 7y

    7 = y

    Answer x=-7 and y=7
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