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k in (-oo:+oo)
(1/3)*k+3*k+1/4 = 193/132 // - 193/132
(1/3)*k+3*k+1/4-(193/132) = 0
(1/3)*k+3*k+1/4-193/132 = 0
10/3*k-40/33 = 0 // + 40/33
10/3*k = 40/33 // : 10/3
k = 40/33/10/3
k = 4/11
k = 4/11
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