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x in (-oo:+oo)
(5/6)*x-(5/8) = x-(63/88) // - x-(63/88)
(5/6)*x-x-(5/8)+63/88 = 0
(5/6)*x-x-5/8+63/88 = 0
1/11-1/6*x = 0 // - 1/11
-1/6*x = -1/11 // : -1/6
x = -1/11/(-1/6)
x = 6/11
x = 6/11
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