Answer:
Step-by-step explanation:
[tex]2(p + 3) = 20\\\\\mathrm{Divide\:both\:sides\:by\:}2\\\frac{2\left(p+3\right)}{2}=\frac{20}{2}\\\\Simplify\\p+3=10\\\\\mathrm{Subtract\:}3\mathrm{\:from\:both\:sides}\\p+3-3=10-3\\\\Simplify\\p=7[/tex]