Matematika

Pertanyaan

persamaan linier 7x + 3y = —5 dan 5x + 2y = 1

1 Jawaban

  • 7x + 3y = -5
    5x + 2y = 1
    -------------------
    14 x + 6y = -10
    15x + 6y = 3
    ----------------------- -
    -x = -13
    x = 13

    5x + 2y = 1
    5(13) + 2y = 1
    65 + 2y = 1
    2y = -64
    y = -32

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