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7 November, 09:52

2x + 3y = - 19

-2x - y = 1

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Answers (1)
  1. 7 November, 12:27
    0
    The x both cancels out

    So you're left with 2y=-18 (add 3y to negative y and - 19 and 1)

    Divide by 2 and y equals - 9

    Plug in y to get x

    2x + 3 (-9) = - 19

    2x + - 27 = - 19

    Add 27 to both sides

    2x = 8

    Divide by 2, x = 4

    So x = 4 and y = - 9
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