Odpowiedzi

2010-02-27T15:23:14+01:00
3*0,5-3*8-(5-2*0,5)=
=1,5-24-(5-1)=
=1,5-24+4=
=28-1,5=
=13
2010-02-27T15:25:02+01:00
3a-5-5-3a=0,5
3a-3a=0,5+5+5
a=10,5


4x-4y+2x-y=3/4y-1
6x-5y=3/4y-1
6x-75%5y=-1
6x-1.25y=-1