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x in (-oo:+oo)
H+2*h+7/2-(1/2) = 5/6 // - 5/6
H+2*h+7/2-(1/2)-(5/6) = 0
H+2*h+7/2-1/2-5/6 = 0
H+2*h+13/6 = 0
x naleu017Cy do R
x in (-oo:+oo)
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