Răspunsuri

2014-04-22T14:36:38+03:00
X+y=12
x=0,2 *y
x=2/10*y
x=1/5*y
x=y/5
y/5 +y=12  aducem la acelasi numitor
y+5y=60
6y=60
y=10     x=10/5=2
1 5 1
2014-04-22T14:40:57+03:00