Hello Konzetsu!
I mistakenly entered at the end of x instead of p.
Please indulgence! Sorry!
16 - 3p = 2/3p + 5
\(16 - 3p = 2/3p + 5 \)
\(11 = 3p + 2/3p\)
\(11 = \frac{9\ p^{2}+ 2 }{3p} \)
\(33p = 9p^{2}+ 2 \)
\(9p^{2}- 33p+ 2= 0\)
\(a= 9; b= -33;c= 2\)
\(p = {-b \pm \sqrt{b^2-4ac} \over 2a}\)
\(p = {33 \pm \sqrt{33^2-4*9*2} \over 2*9}\)
\(p_{1}= \frac{33+ \sqrt{1017} }{18} = 3.605\)
\(p_{2}= \frac{33- \sqrt{1017} }{18} = 0.06164\)
Greeting asinus :- ) 
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