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5 May, 11:49

5x - 4y = 19

x + 2y = 8

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Answers (1)
  1. 5 May, 12:30
    0
    X + 2y = 8

    x = - 2y + 8

    5x - 4y = 19

    5 (-2y + 8) - 4y = 19

    -10y + 40 - 4y = 19

    -14y = - 21

    y = - 21/-14

    y = 3/2

    x + 2 (3/2) = 8

    x + 3 = 8

    x = 5

    Answer: x = 5

    y = 3/2
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