Matematika

Pertanyaan

x=2y+7
3x-2y=3
tolong dijawab

1 Jawaban

  • x = 2y + 7
    3x - 2y = 3

    3(2y + 7) - 2y = 3
    (6y + 21) - 2y = 3
    6y - 21 - 2y = 3
    6y - 2y = 3 + 21
    4y = 24
    y = 24/4
    y = 6
    x = 2y + 7 = 12 + 7 = 19

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