document.write( "Question 115261: \r
\n" ); document.write( "\n" ); document.write( "The sum of two numbers is 39 and their difference is 7. What are the numbers?
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Algebra.Com's Answer #83849 by checkley71(8403)\"\" \"About 
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X+Y=39 OR X=39-Y
\n" ); document.write( "X-Y=7
\n" ); document.write( "NOW REPLACE X BY (39-Y) IN THE SECOND EQUATION & SOLVE FOR Y.
\n" ); document.write( "39-Y-Y=7
\n" ); document.write( "-2Y=7-39
\n" ); document.write( "-2Y=-32
\n" ); document.write( "Y=-32/-2
\n" ); document.write( "Y=16 ANSWER.
\n" ); document.write( "X+16=39
\n" ); document.write( "X=39-16
\n" ); document.write( "X=23 ANSWER.
\n" ); document.write( "PROOF
\n" ); document.write( "23-16=7
\n" ); document.write( "7=7
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