Odpowiedzi

2010-04-11T14:38:50+02:00
X+y=26
2x+5y=79

x=26-y
52-2y+5y=79

x=26-y
3y=27

x=17 (2 zł)
y=9 (5 zł)
1 5 1
2010-04-11T14:48:09+02:00
2010-04-11T14:52:34+02:00
17*2 = 34
9*5 = 45
34+45=79zł

17+9=26