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| x/2 | < 9 + 5
x/2 < 14
x < 14/2
x < 7
| x/2-5 | < -9
| x/2 | < -9 + 5
x/2 < -4
x < -4/2
x < -2
Jadi, jawabannya adalah {x | -2 < x < 7}