Răspunsuri

2014-07-04T16:27:40+03:00
X= pix 
y=stilou
z=caiet

x+y=5 lei  ⇒x+y=5
y+z=7 lei     x+z=6 ⇒x= 2 lei ⇒ y= 3 lei⇒z=4lei
x+z=6 lei


5 4 5
2014-07-04T16:28:32+03:00
P+S=5
S+C=7
P+C=6
P-pix
S-stilou
C-caiet
daca le adunam pe toate :( P+S)+(P+C)+(S+C)= 2(P+C+S)=5+7+6
P+C+S=18:2
P+C+S=9
9-5=4(caiet)
S+4=7
7-4=3(STILOU)
P+4=6
6-4=2(pix)
2 5 2