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10 October, 09:44

2x + 4y = 1

3x - 5y = 7

solve the simultaneous equations x

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Answers (1)
  1. 10 October, 10:26
    0
    (x, y) = (3/2, - 1/2)

    Step-by-step explanation:

    2x+4y=1 / *3

    3x-5y=7 / * (-2)

    6x+12y=3

    -6x+10y=-14

    ...

    / 22y=-11

    y = - 11/22

    y = - 1/2

    2x+4 * (-1/2) = 1

    2x-2=1

    +2 + 2

    2x=3

    x=3/2

    so the solutionis (x, y) = (3/2, - 1/2)
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