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1/8-(x/9) = 8*x-(9/9) // - 8*x-(9/9)
1/8-(x/9)-(8*x)+9/9 = 0
1/8-(x/9)-8*x+9/9 = 0
9/8-73/9*x = 0 // - 9/8
-73/9*x = -9/8 // : -73/9
x = -9/8/(-73/9)
x = 81/584
x = 81/584
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