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k in (-oo:+oo)
46/33 = 2*k-((2/5)*k)+2/3 // - 2*k-((2/5)*k)+2/3
(2/5)*k-(2*k)+46/33-(2/3) = 0
(2/5)*k-2*k+46/33-2/3 = 0
8/11-8/5*k = 0 // - 8/11
-8/5*k = -8/11 // : -8/5
k = -8/11/(-8/5)
k = 5/11
k = 5/11
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