2. $\frac{p + 2}{p + 7}=\frac{3}{6}$

Explanation:

Step1: Cross - multiply

$6(p + 2)=3(p + 7)$

Step2: Expand both sides

$6p+12 = 3p + 21$

Step3: Subtract $3p$ from both sides

$6p-3p+12=3p-3p + 21$ $3p+12=21$

Step4: Subtract 12 from both sides

$3p+12 - 12=21-12$ $3p=9$

Step5: Divide both sides by 3

$\frac{3p}{3}=\frac{9}{3}$ $p = 3$

Answer:

$p = 3$