Math word problem help?

2 [ L + W ] = 180

2 [ 36 + W ] = 180

36 + W = 90

W = 54 m

L = 36 m

Part 1:

The perimeter of a rectangular piece of land is 180 meters.

If the length of the rectangle is 36 meters,

then the width of the rectangle is 54 meters.

Part 2:

What if instead it is known that the length is 36 meters more than the width?

w + w + 36 = 90

The length and the width are 63 meters and 27 meters respectively.

Prob 1

2L + 2W = 2(L + W) = 180 meters

L + W = 90 meters

since

W = 90 meters - L

L = 36

W = 90 =36 = 54 meter

Prob 2

L + W = 90

L = 36 + W

36 + 2W = 90

2W = 54

W = 27

=(180-72)/2=54

36 x 54

2(w+w+36)=180 >>4w=180-72=108 w=27

27+27+63+63=180

27 x 63