document.write( "Question 268908: The perimeter of a rectangle is 36 inches. the length exceeds the width by 4 inches. what is the length and width\r
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Algebra.Com's Answer #197024 by vksarvepalli(154)\"\" \"About 
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perimeter of a rectangle with length l and width w is given by 2(l+w)\r
\n" ); document.write( "\n" ); document.write( "now given 2(l+w)=36 -------------- 1\r
\n" ); document.write( "\n" ); document.write( "and l=w+4 ------------------ 2\r
\n" ); document.write( "\n" ); document.write( "so from eq.1 l+w=18 \r
\n" ); document.write( "\n" ); document.write( "and substituting the value of l from eq.2
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\n" ); document.write( " we get w+4+w=18\r
\n" ); document.write( "\n" ); document.write( " => 2w+4=18
\n" ); document.write( " => 2w=14
\n" ); document.write( " => w=7\r
\n" ); document.write( "\n" ); document.write( "so length=11
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\n" ); document.write( " width=7
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