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4/9-x = 5*x-(118/99) // - 5*x-(118/99)
4/9-x-(5*x)+118/99 = 0
4/9-x-5*x+118/99 = 0
18/11-6*x = 0 // - 18/11
-6*x = -18/11 // : -6
x = -18/11/(-6)
x = 3/11
x = 3/11
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