Question 953327
The perimeter = 2W + 2L In this problem:
2W+2L = 86 And:
W = 2L - 5 Let's put this value of W in the first equation:
2(2L - 5)+ 2L = 86 Multiply on the left
4L - 10 + 2L = 86 Add L's on left and add 10 on both sides:
6L = 96 Divide both sides by 6:
L = 16 And W= 2(16)-5 = 27
Proof: 2(27)+2(16) = 86; 54+32= 86 We have the correct answer. 

Now the area:
A = W*L; A = 27*16= 432 yds^2