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x in (-oo:+oo)
x/6 = 2*x+4/8 // - 2*x+4/8
x/6-(2*x)-(4/8) = 0
x/6-2*x-1/2 = 0
-11/6*x-1/2 = 0 // + 1/2
-11/6*x = 1/2 // : -11/6
x = 1/2/(-11/6)
x = -3/11
x = -3/11
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