document.write( "Question 1205994: A rectangle has a perimeter 90 units. If the width is 6 more than 2 times the length, find the length
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Algebra.Com's Answer #843143 by MathLover1(20849)\"\" \"About 
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\n" ); document.write( "let the width be \"W+\"and the length \"L\"\r
\n" ); document.write( "\n" ); document.write( "perimeter is\r
\n" ); document.write( "\n" ); document.write( "\"P=2%28L%2BW%29\"\r
\n" ); document.write( "\n" ); document.write( "if a rectangle has a perimeter \"90+\"units, we have\r
\n" ); document.write( "\n" ); document.write( "\"2%28L%2BW%29=90\"\r
\n" ); document.write( "\n" ); document.write( "\"L%2BW=45\".......eq.1\r
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\n" ); document.write( "\n" ); document.write( "if the width is \"6\" more than \"2\" times the length, we have\r
\n" ); document.write( "\n" ); document.write( "\"W=2L%2B6\"....eq.2\r
\n" ); document.write( "\n" ); document.write( "substitute width in eq.1\r
\n" ); document.write( "\n" ); document.write( "\"L%2B2L%2B6=45\".......solve for\"+L\"\r
\n" ); document.write( "\n" ); document.write( "\"3L=45-6\"\r
\n" ); document.write( "\n" ); document.write( "\"3L=39\"\r
\n" ); document.write( "\n" ); document.write( "\"L=13\"
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\n" ); document.write( " the length is \"13\" units\r
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