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x < 1
Maka, keduanya negatif:
-(x-1) + -(2x-5) < 3
-x+1 - 2x + 5 < 3
-3x + 6 < 3
-3x < -3
x > 1
Irisan dengan domain = { }
1 ≤ x < 5/2
Maka, x-1 positif dan 2x-5 negatif,
x-1 + -(2x-5) < 3
x-1 - 2x + 5 < 3
-x + 4 < 3
-x < -1
x > 1
Ambil irisan, didapat:
1 < x < 5/2
x ≥ 5/2
Maka, keduanya positif,
x-1 + 2x-5 < 3
3x - 6 < 3
3x < 9
x < 3
Irisan domain, didapat:
5/2 ≤ x < 3
Gabungkan seluruhnya, didapat:
HP = {1 < x < 3, x E R}