Answer:
p = 7
Step-by-step explanation:
Step 1: Subtract 2p from both sides.
5p − 9 − 2p = 2p + 12 − 2p
3p − 9 = 12
Step 2: Add 9 to both sides.
3p − 9 + 9 = 12 + 9
3p=21
Step 3: Divide both sides by 3.
[tex]\frac{3p}{3}[/tex] = [tex]\frac{21}{3}[/tex]
p = 7
