Matematika

Pertanyaan

5x=2-y dan 15x + 4y - 11 =0

1 Jawaban

  • => 5x = 2 - y => 15x + 4y - 11 = 0
    5x + y = 2 15x + 4y = 11

    => 5x + y = 2 x4 20x + 4y = 8
    15x + 4y = 11 x1 15x + 4y = 11
    __________ _
    5x = 3
    x = 3/5
    Di subtitusikan
    5x + y = 2
    5x3/5 + y = 2
    3 + y = 2
    y = 2 - 3 = -1

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