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x in (-oo:+oo)
G = (6/5)*(p-77) // - (6/5)*(p-77)
G-((6/5)*(p-77)) = 0
(-6/5)*(p-77)+G = 0
G-6/5*(p-77) = 0
G-6/5*(p-77) = 0
G-6/5*p+462/5 = 0
G-6/5*p+462/5 = 0
x belongs to the empty set
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