Răspunsuri

2014-11-04T12:41:30+02:00
2x+14grade29min40sec=20grade
2x+14grade29min40sec=19grade 59min60sec
2x=19grade59min60sec-14grade29min40sec
2x=5grade30min20sec
x=4grade90min20sec/2
x=2grade45min10sec

3 5 3