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x in (-oo:+oo)
5-((2*x)/(-3))-4 < -x // + x
x-((2*x)/(-3))-4+5 < 0
(2/3)*x+x-4+5 < 0
5/3*x+1 < 0 // - 1
5/3*x < -1 // : 5/3
x < -1/5/3
x < -3/5
x in (-oo:-3/5)
(-oo:-3/5)
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