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12 April, 11:58

Solve the linear equation with any method.

4x-7y=18

9x+14y=40

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Answers (1)
  1. 12 April, 12:37
    0
    Cramer's rule seems appropriate for this, since the graph shows fractions with unusual denominators.

    x = (-7*40 - 14*18) / (-7*9 - 4*14) = - 532/-119 = 4 8/17

    y = (18*9 - 40*4) / - 119 = - 2/119

    (x, y) = (76/17, - 2/119)
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