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K in (-oo:+oo)
K/4 = 77/3 // - 77/3
K/4-(77/3) = 0
K/4-77/3 = 0
1/4*K-77/3 = 0 // + 77/3
1/4*K = 77/3 // : 1/4
K = 77/3/1/4
K = 308/3
K = 308/3
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