![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The length of the rectangle is l and its width is w.
\The difference between the length and width is 9 inches then equation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2ddaacd0031f2e4d437d7a0c2e044c2c.png\")
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The perimeter of the rectangle is 52 inches then the equation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b549fec92697b73d42d38bda44e4908c.png\")
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Apply distributive property .
\![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=93c747c95a43730bb98ed90a9caf1a09.png\")
\ \
The system of equation is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fe8d7a225a919d17d2b67f927cab9d71.png\")
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The system of equation change into matrix form
\![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a9d1c8e9893ffae7bb0ab01964e7d4f7.png\")
The above matrix has 2 rows 3 columns.So the dimension is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fdb948501136a9fc9590ef122574570b.png\")
.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The dimension of rectangle is .