Matematika

Pertanyaan

dik 5(x+3)-25=3(4x-1).nilai dari x-1 adalah........

2 Jawaban

  • 5 (x + 3) - 25 = 3 (4x - 1).
    5x + 15 - 25 = 12x - 3
    5x - 10 = 12x - 3
    5x - 12x = - 3 + 10
    -7x = 7
    x = -1

    x - 1 = -1 - 1 = -2
  • 5(x+3)-25 = 3(4x-1)
    5x + 15 - 25 = 12x - 3
    5x - 10 = 12x - 3
    5x - 12x = 10 - 3
    -7x = 7
       x = -1

    x-1 = -1-1 = -2

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