Răspunsuri

2014-04-02T13:49:19+03:00
X-2010=2010-x => x+x=2010+2010 => 2x=4020=> x=2010
2014-04-02T14:05:50+03:00
x-2010=2010-x => x+x=2010+2010 => 2x=4020=> x=2010