Matematika

Pertanyaan

tolong jawab secepatnya
tolong jawab secepatnya

1 Jawaban

  • A=B
    3x+2y = 1
    2x+5y = 8

    ¤ eliminasi
    ×2 | 6x+4y = 2
    ×3 | 6x+15y = 24
    -11y = -22
    y = 2

    ¤ substitusi
    3x+2y = 1
    3x+ 2×2 = 1
    3x + 4 = 1
    3x = 1-4
    3x = -3
    x = -1

    ¤ nilai 5x+6y = 5×(-1) + 6×2 = -5+12 = 7

    *)semoga membantu... ^.^