Pake caranya yaa... A. |8 - 5x| - 9 = 0 B. 5x - 4 > 20 + x =... Makasih :)))

Bab Nilai Mutlak
Matematika SMA Kelas X

a] |8 - 5x| - 9 = 0
    |8 - 5x| = 9

    8 - 5x = 9
    -5x = 9 - 8
   x = 1/-5
   x = -1/5

  8 - 5x = -9
  -5x = -9 - 8
  x = -17/-5
  x = 17/5

2] 5x - 4 > 20 + x
    5x - x > 20 + 4
    4x > 24
    x > 24 / 4  
    x > 6