Matematika

Pertanyaan

2x + 3y = 4 dan 2x + y = 0

Eliminasi ... lahh kawan !

2 Jawaban

  • Materi : SPLDV

    Metode Eliminasi

    2x + 3y = 4
    2x + y = 0
    ---------------- (-)
    2y = 4
    y = 2

    2x + y = 0
    2x + 2 = 0
    2x = -2
    x = -1

    Hp = {-1 , 2 }
  • 2x+ 3y = 4
    2x+ y = 0
    _______-
    => y = 2

    subtitusi nilai y pada persamaan 2x + y = 0

    => 2x + y = 0
    = 2x + 2 =0
    = 2x = -2
    = x = -1

    nilai(x,y) = (-1,2)


    ^_^

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