Matematika

Pertanyaan

Carilah nilai X dari persamaan berikut:

Soal
a.X+5=-6

b.2x -1=7

c.15x-5x=2x-4

Tolong di jawab

2 Jawaban

  • a. x + 5 = -6
    x = -6 - 5
    x = -11

    b. 2x - 1 = 7
    2x = 7 + 1
    2x = 8
    x = 4

    c. 15x - 5x = 2x - 4
    10x - 2x = -4
    8x = -4
    x = -4/8
    x = -1/2
  • A) x+5=-6
    x=-6-5
    x=-11
    B) 2x-1=7
    2x=7+1
    2x=8
    x=8/2
    x=4
    C) 15x- 5x=2x-4
    15x-5x-2x=-4
    15x-7x=-4
    8×=-4
    x=-4/8
    x=-1/2

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