Matematika

Pertanyaan

5x = 4y + 8
3y = 3x - 3
tentukan selesaiannya dengan cara substitusi

1 Jawaban

  • 5x = 4y + 8
    3y = 3x - 3

    5x = 4y + 8
    x = 4/5y + 8/5

    3y = 3x - 3
    3y = 3(4/5y + 8/5) - 3
    3y = 12/5y + 24/5 - 3
    3y - 12/5y = 24/5 - 3
    3/5y = 9/5
    3y = 9
    y = 3

    x = 4/5y + 8/5
    x = 12/5 + 8/5
    x = 20/5
    x = 4

    Maaf Kalau Salah

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