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January 28, 2015

January 28, 2015

Posted by **654** on Sunday, September 1, 2013 at 8:39am.

- maths -
**MathMate**, Sunday, September 1, 2013 at 11:14amSet up a system of equations:

Let

W=width

L=length

then

Perimeter =

54 = 2(L+W) ...(1)

L=2W-3 ...(2)

Solve W by substituting (2) in (1), and hence solve for L.

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