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x in (-oo:+oo)
4-((5/8)*x) > 7 // - 7
4-((5/8)*x)-7 > 0
(-5/8)*x-7+4 > 0
-5/8*x-3 > 0 // + 3
-5/8*x > 3 // : -5/8
x < 3/(-5/8)
x < -24/5
x in (-oo:-24/5)
(-oo:-24/5)
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