SOLUTION: if The length of a rectangle is 1 inch less than twice its width, and its perimeter is 40 inches what would the width of the rectangle be?

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Question 877827: if The length of a rectangle is 1 inch less than twice its width, and its perimeter is 40 inches what would the width of the rectangle be?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
L=W-1
.
.
.
P=2L%2B2W=40
L%2BW=20
Substituting,
W-1%2BW=20
2W=21
W=21%2F2inches