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n in (-oo:+oo)
(3/4)*n+4*n+5 = 145/48 // - 145/48
(3/4)*n+4*n-(145/48)+5 = 0
(3/4)*n+4*n-145/48+5 = 0
19/4*n+95/48 = 0 // - 95/48
19/4*n = -95/48 // : 19/4
n = -95/48/19/4
n = -5/12
n = -5/12
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