Matematika

Pertanyaan

4x+3y =-5 dan -x+3y=-10

1 Jawaban

  • (1) 4x + 3y = -5
    (2) -x + 3y = -10

    Subtitusikan!
    4x + 3y = -5
    -x + 3y = -10
    __________ -
    5x = 5
    x = 1

    4(1) + 3y = -5
    4 + 3y = -5
    3y = -9
    y = -3

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