document.write( "Question 883097: The sum of two numbers is 20. The difference is 6 \n" ); document.write( "
Algebra.Com's Answer #533339 by algebrahouse.com(1659)\"\" \"About 
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x = one number
\n" ); document.write( "y = other number\r
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\n" ); document.write( "\n" ); document.write( "x + y = 20 {sum of two numbers is 20}
\n" ); document.write( "x - y = 6 {their difference is 6}
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\n" ); document.write( "2x = 26 {added the two equations}
\n" ); document.write( "x = 13 {divided each side by 2}\r
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\n" ); document.write( "\n" ); document.write( "x + y = 20 {first equation}
\n" ); document.write( "13 + y = 20 {substituted 13, in for x, into first equation}
\n" ); document.write( "y = 7 {subtracted 13 from each side}\r
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\n" ); document.write( "\n" ); document.write( "13 and 7 are the two numbers
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