Matematika

Pertanyaan

tentukan himpunan penyelesaian 2x+3y=6
X-y=3

1 Jawaban

  • Eliminasi x
    2x+3 = 6 (dikali 1)
    x-y = 3 (dikali 2)

    2x+3y = 6
    2x-2y = 6
    _________ -
    5y = 0
    y = 0 : 5
    y = 0

    Eliminasi y
    2x+3 = 6 (dikali 1)
    x-y = 3 (dikali 3)

    2x+3y = 6
    3x-3y = 9
    _________ +
    5x = 15
    x = 15 : 5
    x = 3

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