document.write( "Question 38031: Find a8 if a1=-21, an=an-1-3; for n=2,3,4.... Please help me solve this one. I don't know how to do it. \n" ); document.write( "
Algebra.Com's Answer #23532 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Find a8 if a1=-21, an=an-1-3\r
\n" ); document.write( "\n" ); document.write( "You have a garble in your posting
\n" ); document.write( "an cannot be an-1-3 as you have indicated.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );