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x in (-oo:+oo)
9 = 8*x-(2/(-6)) // - 8*x-(2/(-6))
2/(-6)-(8*x)+9 = 0
2/(-6)-8*x+9 = 0
26/3-8*x = 0 // - 26/3
-8*x = -26/3 // : -8
x = -26/3/(-8)
x = 13/12
x = 13/12
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