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26 September, 14:51

X=2y-1

3x-2y=-3

What are the coordinates

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Answers (1)
  1. 26 September, 16:52
    0
    3x-2y=-3 (label equation 1) and x=2y-1 (label equation 2)

    3 (2y-1) - 2y=-3 (sub 2 into 1)

    6y-3-2y=-3

    4y-3=-3

    +3 + 3

    4y=0

    y=0

    sub y=o into equation 2

    x = 2 (0) - 1

    x=-1

    therefore the co-ordinates are (-1,0)
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