Matematika

Pertanyaan

2x + 3y = 13...... 2)
4x - 7 y = 2.... 3)

1 Jawaban

  • 2x + 3y = 13
    4x - 7y = 2
    Jwb : eliminasi x :
    4x + 6y = 26
    4x - 7y = 2
    __________ -
    0 - y = 24
    y = 24

    Eliminasi y :
    14x + 21y = 91
    12x - 21y = 6
    ____________+
    26x + 0 = 85
    26x = 85

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