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x in (-oo:+oo)
Z/3 = z/12+12/4 // - z/12+12/4
Z/3-(z/12)-(12/4) = 0
Z/3-(z/12)-3 = 0
1/3*Z-1/12*z-3 = 0
x naleu017Cy do R
x in (-oo:+oo)
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