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= -2x < 4-3
= -2x < 1
= x < -1/2
2. x/2 + 5 > 9
= x/2 > 9-5
= x/2 > 4
= x > 4x2
= x > 8
3. x+5 < 1-9x
= x + 9x < 1-5
= 10x < -4
= x < -4/10
= x < -2/5