don't know this please help me

Answer:
Step-by-step explanation:
[tex] - 3p + \frac{1}{8} = - \frac{1}{4} [/tex]
[tex] = > - 3p = - \frac{1}{4} - \frac{1}{8} [/tex]
[tex] = > - 3p = \frac{ - 2 - 1}{8} [/tex]
[tex] = > - 3p = \frac{ - 3}{8} [/tex]
[tex] = > p = \frac{ - 3}{8} \times \frac{1}{ - 3} [/tex]
[tex] = > p = \frac{1}{8} (ans)[/tex]