Answer:
Explanation:
Formula
P = 2w + 2L
w = x + 3
L = 2(x + 4)- (x + 4) Remove the brackets on both terms
Solution
L = 2x + 8 - x - 4 Combine like terms
L = x + 4
P = 2L + 2w
P = 2(x + 4) + 2(x + 3) Remove the brackets
P = 2x + 8 + 2x + 6 Collect like terms
P = 2x + 2x + 8 + 6 Combine
P = 4x + 14
Answer
Perimeter = 4x + 14