[tex]\begin{gathered} \frac{2}{3}p\text{ + 4 }\leq\text{20} \\ \frac{2p}{3}\text{ + 4 }\leq\text{20} \\ By\text{ colleccting like times we have} \\ \frac{2p}{3}\text{ }\leq\text{ 20 - 4} \\ \frac{2p}{3}\text{ }\leq\text{ 16} \\ By\text{ mutilplying both sides by The L.C.M which is 3} \\ 3\text{ }\times\text{ }\frac{2p}{3}\text{ }\leq\text{ 3 }\times\text{ 16} \\ 2p\text{ }\leq\text{ 48} \\ p\text{ }\leq\frac{48}{2} \\ p\leq24 \end{gathered}[/tex]
