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kalikan 2
x - 4 > 8 + 8/5x
kalikan 5
5x - 20 > 40 + 8x
5x - 8x > 40 + 20
- 3x > 60
3x < -60
x < -60/3
x < -20
x - 4 > 8 + 8/5 x (kedua sisi dikali 5)
5x - 20 > 40 + 8x
5x - 8x > 40 + 20
-3x > 60 (dikali -1, tanda berubah arah)
3x < -60
x < -60/3
x < -20