[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/session.php on line 580: sizeof(): Parameter must be an array or an object that implements Countable
[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/session.php on line 636: sizeof(): Parameter must be an array or an object that implements Countable
•20140070050
Page 1 of 1

20140070050

Posted: Fri Oct 06, 2017 2:41 pm
by ada
$3(4x+5)=25(2x-7)$