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x in (-oo:+oo)
x-8 = 2*x-(43/6) // - 2*x-(43/6)
x-(2*x)+43/6-8 = 0
x-2*x+43/6-8 = 0
-x-5/6 = 0 // + 5/6
-x = 5/6 // * -1
x = -5/6
x = -5/6
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