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-x < 3 - 8
-x < -5
x > 5
HP = {5, 6, 7, 8, 9, ....}
=====
4(x + 7) > -2(x + 4)
4x + 28 > -2x - 8
4x + 2x > -8 - 28
6x > -36
x > -36 / 6
x > -6
HP = {-6, -5, -4, -3, -2, ....}