Matematika

Pertanyaan

Himpunan penyesaian dari 3x+2y=4 dan 2x+3y=1

2 Jawaban

  • eliminasi aja. . .

    3x + 2y = 4 (kali 2) 6x + 4y = 8
    2x + 3y = 1 (kali 3) 6x + 9y = 3
    _________ _
    - 5y = 5
    y = -1

    maka masukkan ke persamaan (2) karena lebih sederhana sehingga:
    2x + 3(-1) = 1
    2x = 4
    x = 2

    Jadi, himpunannya (2, -1) (pakai kurung kurawal yah)
  • Gunakan rumus eliminasi

    3x+2y=4 ( dikalikan 2)
    2x+3y=1 ( dikalikan 3)
    ```````````````````````````````````````````````````
    6x + 4y = 8
    6x + 9y = 3 -
    ```````````````````````````
    -5 y = 5
    = y = 5/-5 = -1

    3x+2y=4
    3x + 2.-1 = 4
    3x + -2 = 4
    3x = 4+ 2
    X = 6/3 = 2

    Jadi , y = -1
    Dan x = 2

    Jalau boleh jadikan jawaban terbaik yah

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