Matematika

Pertanyaan

3x + 4y = -6
2x - 3y = 13

2 Jawaban

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    Gambar lampiran jawaban Diahfa
  • 3x + 4y = -6 | ×2 |
    2x - 3y = 13 | ×3 |
    -------------------------
    6x + 8y = -12
    6x - 9y = 39
    ------------------ -
    17y = -51
    y = -3

    3x + 4y = -6
    3x + 4 (-3) = -6
    3x - 12 = -6
    3x = 6
    x = 2

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