Answer:
n = 11
Step-by-step explanation:
Perimeter = sum of all the sides
n + n - 3 + 2(n-2) = 37 units
n + n - 3 + 2n - 4 = 37 {Combine like terms}
n + n + 2n - 3 - 4 = 37
4n - 7 = 37
4n= 37 + 7
4n = 44
n = 44/4
12
p = -9 is the answer