Matematika

Pertanyaan

tolong jawab pertanyaan ini gan?
tolong jawab pertanyaan ini gan?

1 Jawaban

  • | 3 (x +2) + 4 | = 10
    | 3x + 6 + 4   | = 10
    |3x + 10 | = 10
    3x + 10 = 10
    3x = 10-10
    3x = 0
    x = 0/3
    x = 0

    |6-2x| > 7
    6 - 2x = 7
    - 2x = 7 - 6
    -2x = 1
    x = 1/2 atau x = 0,5

    |2x - 3| <= |x + 4|
    2x - 3 <= x+ 4
    2x - x <= 4 + 3
    x <= 7