Matematika

Pertanyaan

4x + 5y = 7 & 6x - 10y = 28

jwb:???

pakai cara metode eliminasi.
di bntu yah:)

1 Jawaban

  • 6x - 10y = 28 | ×2 = 12x - 20y = 56
    4x + 5y = 7 | ×3 = 12x + 15y = 21
    (dikurangi)
    -5y = 35
    y = 5

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