Question

2p + 7 = 9

Explanation:

Step1: Isolate the term with $d$

Subtract 7 from both sides.
$2d + 7 - 7 = 9 - 7$
$2d = 2$

Step2: Solve for $d$

Divide both sides by 2.
$\frac{2d}{2} = \frac{2}{2}$
$d = 1$

Answer:

1