SOLUTION: what is the length and width if the perimeter is 70 and the width is 11 feet longer than the length?

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Question 785659: what is the length and width if the perimeter is 70 and the width is 11 feet longer than the length?
Answer by waynest(281) About Me  (Show Source):
You can put this solution on YOUR website!
let L = w + 11
P = 2W + 2L
70 = 2W + 2(w + 11)
70 = 2W + 2w + 22
70 - 22 = 4W
48 = 4W
48/4 = W
12 = W
check:
2(12) + 2(12 + 11)= 70
24 + 46 = 70
70 = 70