Tolong di bantu pelajaran SMA

[tex] \frac{q - 10}{16 - 10} = \frac{p - 10}{8 - 10} \\ - 2q + 20 = 6p - 60 \\ p = \frac{ - 2q + 80}{6} = - \frac{1}{3} q + \frac{40}{3} [/tex]