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25 March, 09:06

What is the solution of system of equations y=2x - 3.5 and x - 2y=-14

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Answers (2)
  1. 25 March, 09:31
    0
    The solution is x=7, y=10.5
  2. 25 March, 11:02
    0
    Use substitution ...

    x-2 (2x-3.5) = - 14

    x-4x+7=-14

    -3x=-21

    x=7

    Plug in x into one of the equations to get y ...

    y=2 (7) - 3.5

    y=10.5

    (7,10.5)

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