document.write( "Question 488004: The difference between two numbers is 15. Their sum is 77. What are the numbers? \n" ); document.write( "
Algebra.Com's Answer #333230 by John10(297)\"\" \"About 
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x - y = 15 (1)
\n" ); document.write( "x + y = 77 (2)
\n" ); document.write( "Add (1) and (2):
\n" ); document.write( "2x = 92
\n" ); document.write( "x = 92/2
\n" ); document.write( "x = 46
\n" ); document.write( "Then y = 77 - 46 = 31
\n" ); document.write( "John10:)
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