document.write( "Question 1151997: The average of two numbers is 11.the difference between them is 4,find the number \n" ); document.write( "
Algebra.Com's Answer #773884 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "let two numbers be \"x\" and \"y\"\r
\n" ); document.write( "\n" ); document.write( "if the average of two numbers is \"11\",we have\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2By%29%2F2=11\"\r
\n" ); document.write( "\n" ); document.write( "\"x%2By=11%2A2\"\r
\n" ); document.write( "\n" ); document.write( "\"x%2By=22\"\r
\n" ); document.write( "\n" ); document.write( "\"x=22-y\".........eq.1\r
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\n" ); document.write( "\n" ); document.write( "if the difference between them is \"4\", we have\r
\n" ); document.write( "\n" ); document.write( "\"x-y=4\"\r
\n" ); document.write( "\n" ); document.write( "\"x=y%2B4\"......eq.2\r
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\n" ); document.write( "\n" ); document.write( "from eq.1 and eq.2 we have\r
\n" ); document.write( "\n" ); document.write( "\"22-y=y%2B4\"\r
\n" ); document.write( "\n" ); document.write( "\"22-4=y%2By\"\r
\n" ); document.write( "\n" ); document.write( "\"2y=18\"\r
\n" ); document.write( "\n" ); document.write( "\"y=18%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"y=9\"\r
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\n" ); document.write( "\n" ); document.write( "then, \r
\n" ); document.write( "\n" ); document.write( "\"x=9%2B4\"......eq.2\r
\n" ); document.write( "\n" ); document.write( "\"x=13\"\r
\n" ); document.write( "\n" ); document.write( "answer: your numbers are: \"9\" and \"13\"\r
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