Răspunsuri

2014-10-02T14:35:29+03:00
X+2y=24; x+y=19=> y=(x+2y)-(x+y)=24-19=5
2014-10-02T15:01:17+03:00
X+2y=24,x+y=19
x+y+y=24,19+y=24,y=5
marcheaza-l daca e cel mai bun raspuns.multumesc!