Răspuns :
trebuie rezolvat prin sistem de ecuatie
6x+9y= 145,8 <=>
-6x+16y=144 <=>
2x+0.36=46.8 <=>
y=0,36 <=>
x=23,76
y=0.36
6x+9y= 145,8 <=>
-6x+16y=144 <=>
2x+0.36=46.8 <=>
y=0,36 <=>
x=23,76
y=0.36
3 carti+2 caiete=48,6
3carti+8 caiete=72
72-48,6=23,4--6 caiete
48,6-23,4=24,2--4c
24,2-23,4=0,8
3carti+8 caiete=72
72-48,6=23,4--6 caiete
48,6-23,4=24,2--4c
24,2-23,4=0,8