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k in (-oo:+oo)
(3*k)/4+2/3 = 17/12 // - 17/12
(3*k)/4+2/3-(17/12) = 0
(3*k)/4+2/3-17/12 = 0
3/4*k-3/4 = 0 // + 3/4
3/4*k = 3/4 // : 3/4
k = 3/4/3/4
k = 1
k = 1
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