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x in (-oo:+oo)
2/11-(4*x) = 4*x+9/11 // - 4*x+9/11
2/11-(4*x)-(4*x)-(9/11) = 0
2/11-4*x-4*x-9/11 = 0
-8*x-7/11 = 0 // + 7/11
-8*x = 7/11 // : -8
x = 7/11/(-8)
x = -7/88
x = -7/88
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