Matematika

Pertanyaan

11c + 2d = 37
5c + 2d = 19

2 Jawaban

  • Mapel : Matematika
    Bab : Sistem Persamaan Linear Dua Variabel (SPLDV)

    11c + 2d = 37
    5c + 2d = 19
    -------------------  -
            6c = 18
              c = 18/6
              c = 3

       5c + 2d = 19
    5(3) + 2d = 19
      15 + 2d = 19
              2d = 19 - 15
              2d = 4
                d = 4/2
                d = 2

    HP = { 3, 2 }
  • Pertama variabelnya disamain
    11c+5c+2d+2d=37+19 jadi
    16c+4d=56

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