document.write( "Question 499423: jennifer is 6 years older than sue. in 4 years, she will be twice as old as sue was 5 years ago. find their ages now. \n" ); document.write( "
Algebra.Com's Answer #337679 by oberobic(2304)\"\" \"About 
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J = Jennifer's age
\n" ); document.write( "S = Sue's age
\n" ); document.write( "J = S+6
\n" ); document.write( ".
\n" ); document.write( "In 4 years...
\n" ); document.write( "J+4
\n" ); document.write( ".
\n" ); document.write( "J will be twice as old as S was 5 years ago
\n" ); document.write( "J+4 = 2(S-5)
\n" ); document.write( "J = 2S - 10 - 4
\n" ); document.write( "J = 2S -14
\n" ); document.write( ".
\n" ); document.write( "Substitute
\n" ); document.write( ".\r
\n" ); document.write( "\n" ); document.write( "S+6 = 2S-14
\n" ); document.write( "-S = -20
\n" ); document.write( "S = 20
\n" ); document.write( "J = 20+6
\n" ); document.write( "J = 26
\n" ); document.write( ".
\n" ); document.write( "Check.
\n" ); document.write( "In 4 years:
\n" ); document.write( "J+4 = 26 + 4 = 30
\n" ); document.write( "...
\n" ); document.write( "Jennifer will be twice as old as Sue was 5 years ago.
\n" ); document.write( "5 years ago Sue was 20-5 = 15 years old
\n" ); document.write( "2 * 15 = 30
\n" ); document.write( "...
\n" ); document.write( "Correct.
\n" ); document.write( ".
\n" ); document.write( "Answer:
\n" ); document.write( "Jennifer is 26, and Sue is 20.
\n" ); document.write( ".
\n" ); document.write( "Done.
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