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k in (-oo:+oo)
2*k-(3/(-9)) > 3 // - 3
2*k-(3/(-9))-3 > 0
2*k+1/3-3 > 0
2*k-8/3 > 0 // + 8/3
2*k > 8/3 // : 2
k > 8/3/2
k > 4/3
k in (4/3:+oo)
(4/3:+oo)
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