Matematika

Pertanyaan

Jika 6 - 1/3 (3x - 9) = 1/2 (8x + 20) maka nilai 2x - 10 adalah

2 Jawaban

  • 6 - 1/3 (3x - 9) = 1/2 (8x + 20)
    6 - x + 3 = 4x + 10
    -x + 9 = 4x + 10
    -x - 4x = 10 - 9
    -5x = 1
    x = -1/5

    2x - 10
    2(-1/5) - 10
    -2/5 - 10
    -10 2/5
  • 6- 1/3(3x -9) = 1/2(8x+20)
    6 - x + 3 = 4x + 10
    -x + 9 = 4x + 10
    -x - 4x = 10-9
    -5x = 1
    x = (-1/5)
    Karena x = (-1/5) maka nilai dari 2x -10
    = 2(-1/5) - 10
    = (-2/5)-10
    = (-2-50)/5
    = -52/5

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