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n in (-oo:+oo)
n-(5*n)-5/8 = 27/8 // - 27/8
n-(5*n)-5/8-(27/8) = 0
n-5*n-5/8-27/8 = 0
-4*n-4 = 0 // + 4
-4*n = 4 // : -4
n = 4/(-4)
n = -1
n = -1
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