Answer:
3x + 7
Step-by-step explanation:
Recall that a regular pentagon has 5 sides of equal length
If the perimeter of the pentagon is given, then the length of each side is simply the perimeter divide by 5 or,
length of each side
= perimeter ÷ 5
= (15x + 35) ÷ 5
= (15/5) x + (35/5)
= 3x + 7
