SOLUTION: The length of a rectangle is 2cm less than twice its width.what is the width in cm, if its perimeter is 50cm?

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Question 478701: The length of a rectangle is 2cm less than twice its width.what is the width in cm, if its perimeter is 50cm?
Answer by emargo19(101) About Me  (Show Source):
You can put this solution on YOUR website!
Let the width be x
And the length be 2x-2
Perimeter=50
Formula for perimeter is
P=2%28l%2Bw%29
50=2%282x-2%2Bx%29
50=2%283x-2%29
50=6x-4
54=6x
x=9
width=9cm