Matematika

Pertanyaan

SPLDV 3y=4x+7 dan 9x-6y+8=0

1 Jawaban

  • 4x-3y = -7    (x2)
    9x-6y = -8

    8x-6y = -14
    9x-6y = -8
    ---------------------- -
    -x = -6
    x = 6

    3y = 4x+7
    3y = 4.6 +7
    3y = 24 + 7
    3y = 31
    y = 31/3

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