Răspunsuri

2014-07-31T09:37:12+03:00
1s+2c=14
1s`+3c=16
--------------------
16-14=2(un caiet)
s`+2x2=14
s+4=14
s=14-4
s=10(un stilou)

2x10+3x2=20+6=26(2 stilouri si 3 caiete)
2014-07-31T10:19:23+03:00
S+2c=14 => s=14-2c
s+3c=16

14-2c+3c=16
3c-2c=16-14
c=2 lei costa un caiet

s=14-2*2 (2*2 inseamna 2+2=4)
s=14-4=10 lei costa un stilou

Cat costa 2 stilouri si 3 caiete?
10+10+2+2+2=
20+6=26 lei 
ups, era 16, modific acum
Gata
multumescccc multtt
cu placere. unde nu intelegi intreaba-ma
ok