document.write( "Question 39979: In an endurance race, Alyson rode her bike 7 miles less than Jeff. Together they rode 39 miles. How far did Jeff Ride? \n" ); document.write( "
Algebra.Com's Answer #25367 by Nate(3500)\"\" \"About 
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Alyson's distance = \"a\"
\n" ); document.write( "Jeff's distance = \"a+%2B+7\"
\n" ); document.write( "so ....
\n" ); document.write( "a + 7 + a = 39
\n" ); document.write( "2a = 32
\n" ); document.write( "a = 16
\n" ); document.write( "plug ....
\n" ); document.write( "a + 7 = ?
\n" ); document.write( "16 + 7 = 23
\n" ); document.write( "Jeff went 23 miles.
\n" ); document.write( "
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