Matematika

Pertanyaan

Tentukan nilai x dari
A |2x-10|=16
B 2|x-7|+10=12

2 Jawaban

  • A.
    |2x- 10| = 16

    2x - 10 = 16
    2x = 16 + 10
    2x = 26
    x = 13

    2x - 10 = -16
    2x = -16 + 10
    2x = -6
    x = -3

    B.
    2|x - 7| + 10 = 12
    2|x - 7| = 12 - 10
    2|x - 7| = 2
    |x - 7| = 1

    x - 7 = 1
    x = 1 + 7
    x = 8

    x - 7 = -1
    x = -1 + 7
    x = 6
  • A)2x - 10 = 16
    2x = 16 + 10
    2x = 26
    x = 13


    atau


    2x - 10 = -16
    2x = -16 + 10
    2x = -6
    x = -3


    jadi, nilai x = 13 atau x = -3

    B) maaf

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