document.write( "Question 1069486: Paul has a son named David. The sum of their ages is 84. After three years, Paul will be twice as old as David. What are their ages now? \n" ); document.write( "
Algebra.Com's Answer #691125 by jorel1380(3719)\"\" \"About 
You can put this solution on YOUR website!
Let David be d. Then Paul is 84-d. So:
\n" ); document.write( "2(d+3)=84-d+3
\n" ); document.write( "2d+6=87-d
\n" ); document.write( "3d=81
\n" ); document.write( "d=27
\n" ); document.write( "David is 27; Paul is 57. ☺☺☺☺
\n" ); document.write( "
\n" );