document.write( "Question 118469: The length of a rectangle is 3m more than 5 times the width.The perimeter is 126m find the length and width. \n" ); document.write( "
Algebra.Com's Answer #86593 by solver91311(24713)\"\" \"About 
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First thing we know is that the length is given by \"l=5w+%2B+3\" where w is the width. The second thing we know is that the perimeter of a rectangle is given by \"P=2l+%2B+2w\".\r
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\n" ); document.write( "\n" ); document.write( "Substituting:\r
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\n" ); document.write( "\n" ); document.write( "\"P=2%285w%2B3%29%2B2w=126\"\r
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\n" ); document.write( "\n" ); document.write( "\"10w%2B6%2B2w=126\"
\n" ); document.write( "\"12w=120\"
\n" ); document.write( "\"w=10\"\r
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\n" ); document.write( "\n" ); document.write( "And,
\n" ); document.write( "\"l=5%2810%29%2B3=53\"\r
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\n" ); document.write( "\n" ); document.write( "So the dimensions are 53 meters by 10 meters
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