Matematika

Pertanyaan

2x - 3y - z = 5
x   + 2y      = 3
        y   + z = 1

1 Jawaban

  • 2x-3y-z = 5
    x+2y. = 3
    y+z = 1
    -----------------+
    3x = 9
    x = 3

    x +2y = 3
    3 +2y = 3
    2y = 0
    y = 0

    y+z = 1
    0+z = 1
    z = 1

    Jadi
    x = 3
    y = 0
    z = 1

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