Răspunsuri

2014-11-16T14:00:23+02:00
6 = 2x3
3 = 1x3
18=6x3
3x (1a+2b)=3 x 6   =>  a+2b = 6
2 4 2
2014-11-16T14:01:30+02:00
3a+6b=18 se imparte la trei si obtine ca a+2b=18/3 a+2b=6
1 2 1