document.write( "Question 607684: The perimeter of a rectangle is 48 cm. The length is 6 cm less than twice the width. Which system would model this situation, and what are the length and the width? \n" ); document.write( "
Algebra.Com's Answer #382836 by sophxmai(62)\"\" \"About 
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The perimeter of a rectangle is 48 cm. The length is 6 cm less than twice the width. Which system would model this situation, and what are the length and the width?\r
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\n" ); document.write( "\n" ); document.write( "Let x=length and y=width
\n" ); document.write( "\"2x%2B2y=48\"
\n" ); document.write( "\"x%2B6=2y\"\r
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\n" ); document.write( "\n" ); document.write( "Solve the 2nd equation for x or y (whichever is more convenient) and then plug into the 1st equation.
\n" ); document.write( "\"x%2B6=2y\"
\n" ); document.write( "\"x=2y-6\"\r
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\n" ); document.write( "\n" ); document.write( "\"2x%2B2y=48\"
\n" ); document.write( "\"2%282y-6%29%2B2y=48\"
\n" ); document.write( "\"4y-12%2B2y=48\"
\n" ); document.write( "\"6y=60\"
\n" ); document.write( "\"y=10\"\r
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\n" ); document.write( "\n" ); document.write( "Substitute y into a previous equation to solve for x.
\n" ); document.write( "\"x=2y-6\"
\n" ); document.write( "\"x=2%2810%29-6\"
\n" ); document.write( "\"x=20-6\"
\n" ); document.write( "\"x=14\"\r
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\n" ); document.write( "\n" ); document.write( "The length is 14cm and the width is 10cm.
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