SOLUTION: the perimeter of my bedroom is 56 feet. the length is 8 more then the width. what are the dimensions of my room? thanks.

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Question 245731: the perimeter of my bedroom is 56 feet. the length is 8 more then the width. what are the dimensions of my room?
thanks.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
Assuming that it is a rectangle,
let W= width and L=length
2L+2W=56 ft
L=W+8
substitute
2(W+8)+2W=56
2W+8+2W=56
subtract 8 from both sides and combine
4W=48
divide both sides by 4
W=12
L=W+8=12+8=20