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18 December, 20:08

How do you substitute x+2y=-7 and 3x-4y=-1

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  1. 18 December, 20:15
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    X+2y=-7 and 3x-4y=-1 is x=13 y=-10 so (13,-10)
  2. 18 December, 20:15
    0
    x=-3 y=-2

    or (-3,-2)
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