Răspunsuri

2014-10-19T11:29:52+03:00
X+214-310=216
x+214=216+310
x+214=426
x=426-214
x=212
2014-10-19T11:30:24+03:00
X+214-310=216
x+214=310+216
x+214=526
         x=526-214
          x=312