Răspuns :
5s+3c=259
s=15+c
5(15+c)+3c=259
75+5c+3c=259
8c=259-75
8c=184
c=184:8
c=23
s=15+23
s=38
5S + 3C = 259 lei
S= 15 + C
5(15+C) + 3C= 259 lei
75 + 5C +3C = 259 lei
8C = 259 - 75
8C= 184
C= 184 : 8
C = 23
S= 15 + 23
S= 38
S= 15 + C
5(15+C) + 3C= 259 lei
75 + 5C +3C = 259 lei
8C = 259 - 75
8C= 184
C= 184 : 8
C = 23
S= 15 + 23
S= 38