Răspunsuri

Cel mai inteligent răspuns!
2014-07-04T19:39:36+03:00
2014-07-04T22:11:43+03:00
4x - 2 - 3x + 15 = 5x
4x - 3x - 5x = 2 - 15
- 4x = - 13
x = 13/4