[tex]\frac{\left(27\cdot \:25-63\cdot \:2\cdot \:3+\frac{\left(\frac{426}{3}+4p\right)}{2}\right)}{4}\cdot \:6=714 \\ \\ \frac{27\cdot \:25-63\cdot \:2\cdot \:3+\frac{\frac{426}{3}+4p}{2}}{4} \\ \\ \\ =\frac{\frac{4p+\frac{426}{3}}{2}+297}{4}=\frac{2p+71+297}{4}=\frac{2p+368}{4}=\frac{2\left(p+184\right)}{4}=\frac{p+184}{2} \\ \\ \\ \frac{\left(p+184\right)\cdot \:6}{2}=714 \\ \\ \\ 3\left(p+184\right)=714 \\ \\ \\ p+184=238 \\ \\ \\ p=54[/tex]
