Odpowiedzi

2009-11-08T08:22:49+01:00
2009-11-08T08:27:01+01:00
2009-11-08T08:42:51+01:00
X-y = 1
x+y = 3

x= y+1
x+y=3

x=y+1
y+1+y=3

x=y+1
2y+1=3

x=y+1
2y=2

x=y+1
y=1

x=2
y=1

spr
2-1 = 1
2+1=3