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20 October, 07:30

X+5y=19

3x-6y=-6 consistent or inconsistent and dependent or independent

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Answers (1)
  1. 20 October, 08:48
    0
    1x + 5y = 19 ⇒ 3x + 15y = 57

    3x - 6y = - 6 ⇒ 3x - 6y = - 6

    21y = 63

    21 21

    y = 3

    3x - 6 (3) = - 6

    3x - 18 = - 6

    + 18 + 18

    3x = 12

    3 3

    x = 4

    (x, y) = (4, 3)

    It is consistent and dependent.
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