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n in (-oo:+oo)
-7*n-(7/8) = 119/24 // - 119/24
-7*n-(7/8)-(119/24) = 0
-7*n-7/8-119/24 = 0
-7*n-35/6 = 0 // + 35/6
-7*n = 35/6 // : -7
n = 35/6/(-7)
n = -5/6
n = -5/6
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