Matematika

Pertanyaan

2x+y=5dan3x-2y=11
tolong bantuannya

1 Jawaban

  • 2x + y = 5 | x3
    3x - 2y = 11 | x2

    6x + 3y = 15
    6x - 4y = 22
    _________-
    7y = -7
    y = -1

    2x + y = 5
    2x + (-1) = 5
    2x = 5 + 1
    x = 6/2
    x = 3

    jadi, X = 3 dan Y = -1

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