Matematika

Pertanyaan

tentukan nilai x persamaan 5x-7+2=7

2 Jawaban

  • 5x - 7 + 2 = 7
    5x - 5 = 7
    5x = 7 + 5
    5x = 12
    x = 2 2/5 atau 2,4
  • 5x - 7 + 2 = 7
    5x - 5 = 7
    5x = 7 + 5
    5x = 12
    x = 12/5

    5x - 5 = -7
    5x = -7 + 5
    5x = -2
    x = -2/5

    x = {12/5 atau -2/5}

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