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x in (-oo:+oo)
1/9 = 2*27*x // - 2*27*x
1/9-(2*27*x) = 0
1/9-54*x = 0
1/9-54*x = 0 // - 1/9
-54*x = -1/9 // : -54
x = -1/9/(-54)
x = 1/486
x = 1/486
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