To solve the equation \( 6 = |p + 9| \), we need to consider the two cases that arise from the absolute value.
Case 1: \[ p + 9 = 6 \] Subtracting 9 from both sides gives: \[ p = 6 - 9 \] \[ p = -3 \]
Case 2: \[ p + 9 = -6 \] Subtracting 9 from both sides gives: \[ p = -6 - 9 \] \[ p = -15 \]
Thus, the solutions are: \[ p = -3 \quad \text{or} \quad p = -15 \]
In conclusion: \[ p = -3 \text{ or } p = -15 \]