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x in (-oo:+oo)
4/9-10 > x/3-12 // - x/3-12
4/9-(x/3)-10+12 > 0
22/9-1/3*x > 0 // - 22/9
-1/3*x > -22/9 // : -1/3
x < -22/9/(-1/3)
x < 22/3
x in (-oo:22/3)
(-oo:22/3)
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