Răspunsuri

2014-05-17T15:05:41+03:00
P=3c
s=2p
s=2*3c=6c
s-5=c
s=c+5

c+5=6c
c-6c=-5
-5c=-5
5c=5
c=1 leu
p=3*1=3lei
s=1+5=6lei