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p in (-oo:+oo)
(6*p+4)/6 = (4*p-8)/3 // - (4*p-8)/3
(6*p+4)/6-((4*p-8)/3) = 0
(6*p+4)/6+(-1*(4*p-8))/3 = 0
(3*(6*p+4))/(3*6)+(-1*6*(4*p-8))/(3*6) = 0
3*(6*p+4)-1*6*(4*p-8) = 0
60-6*p = 0
(60-6*p)/(3*6) = 0
(60-6*p)/(3*6) = 0 // * 3*6
60-6*p = 0
60-6*p = 0 // - 60
-6*p = -60 // : -6
p = -60/(-6)
p = 10
p = 10
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