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  • Utilizator Brainly
2014-02-19T19:11:37+02:00
2s+3c=15
5s+6c=36

4s+6c=30, 6c=30-4s

5s+30-4s=36
s=6
6c=30-24=6
c=1
2c+2s=2+12=14 lei
20-14= 6 lei rest
1 5 1