$c=$a+$b Simple Math

I have been trying to get a simple math php script to work but can't seem to make it work. Basically at this point I am trying to have a user input two numbers into a html form at http://www.u.arizona.edu/~avr/testing/form2.htm and then I want a php file to add those numbers and display the results. My php file is: <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> <html> <head> <title>test</title> </head> <body> <?php echo "Thanks for Testing <br>"; echo "X: $x <br>"; echo "Y: $y <br>"; $ans=$x+$y echo "Answer: $ans <br>"; ?> </body> </html> So why do I keep getting a "Parse error: parse error in /home/u20/avr/public_html/testing/form2.php3 on line 12"? What do I need to change in order to get it to display the results of x+y? Thanks. Remove the numbers from my address if you want to reply personally -- Andrew V. Romero Romer1999o@pharmacy.arizona.edu Remove the #'s from my address to reply. http://www.u.arizona.edu/~avr/ ICQ #54080914