Question

$5(p - 1) = 40$

Explanation:

Step1: Divide both sides by 5

$\frac{5(p-1)}{5} = \frac{40}{5}$

Step2: Simplify both sides

$p-1 = 8$

Step3: Add 1 to both sides

$p-1+1 = 8+1$

Answer:

$p=9$