Matematika

Pertanyaan

tentukan nilai x yg memenuhi persamaan |2x-1|=9

1 Jawaban

  • nilai mutlak
    |2×-1|=9
    2×-1=9 2× - 1 = -9
    2× = 9+1 2× = -9 + 1
    2× = 10 2x = -8
    x= 10/2 × = -8 / 2
    x = 5 x = -4

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