the length of a rectangle is 7cm less than twice its width. the perimeter is 148cm. find the length? HELP PLZ

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- Jan 11th 2012, 03:48 PMEllerd123algebra word prob.
the length of a rectangle is 7cm less than twice its width. the perimeter is 148cm. find the length? HELP PLZ

- Jan 11th 2012, 03:54 PMpickslidesRe: algebra word prob.
$\displaystyle L=2W-7$

So $\displaystyle L+L+W+W= 2L+2W= 2(2W-7)+2W = 148$