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April 1, 2015

April 1, 2015

Posted by **me** on Sunday, June 16, 2013 at 3:17am.

how do you set up the equation for the perimeter involving only L and how do you solve this in a linear equation algebraically to find the length and the width

- math -
**Reiny**, Sunday, June 16, 2013 at 9:42amlet the length be L

"..the width of a rectangle is 5 inches shorter than the length"

so width = L - 5

Twice the width + twice the length = 80

2L + 2(L-5) = 80

take it from there.

once you have L, evaluate L-5 for the width

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