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18 February, 02:43

3x - 4y = - 5

y = 4x - 2

Is (1,2) a solution of the system?

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Answers (1)
  1. 18 February, 04:02
    0
    Replace x with the given x value in the solution to see if it equals the Y value given in the solution:

    3x - 4y = - 5

    3 (1) - 4 (2) =

    3 - 8 = - 5

    True.

    y = 4x-2

    y = 4 (1) - 2

    y = 4-2

    y = 2

    True.

    Yes (1,2) is a solution.
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