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i in (-oo:+oo)
8-(i/6)-(9*i) = 0
8-(i/6)-9*i = 0
8-55/6*i = 0 // - 8
-55/6*i = -8 // : -55/6
i = -8/(-55/6)
i = 48/55
i = 48/55
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