Matematika

Pertanyaan

Persamaan nilai mutlak linear satu variabel

1. |2x-1| = 7
2. |x+5| = -6
3. |(4x-8)| = 0
4. -5|3x-7|+4 = 14
5. |2x-1| = |x+3|

Bagi kakak kakak yg bisa tolong ya

1 Jawaban

  • 1) 2x = 7 + 1
    2x = 8
    x = 8 : 2
    x = 4

    2) x = -6-5
    x = -11

    3) 4x = 0 + 8
    4x = 8
    x = 8 : 4
    x = 2

    5) 2x - x = 3 + 1
    x = 4

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