Answer 1

i guess your page extension is ".html" (f.e. mypage.html)
if that is the case, change it to ".php" (f.e. mypage.php) and you shouldn't see the additional );}? charachters.
that should be a security feature of servers.
https://stackoverflow.com/questions/16995177/when-would-i-want-to-use-html-vs-php-as-a-file-extension

Answer 2

echo doesn’t use parentheses, most of the time, there are exceptions.

If you want to use them use print() instead of echo.