Odpowiedzi

2010-03-10T19:09:49+01:00
3(2a-7)=6a-21
-½(5b-1)=-2,5b+0,5
(8c+2)/2=4c+1
(-d-3)*(-1)=d+1
1 1 1
2010-03-10T19:10:08+01:00
3(2a-7)=6a - 21
-½(5b-1)=-2,5b + 0,5
(8c+2)÷2=4c + 1
jeśli = to + :D (-d+3)×(-1)=(-dx + 3x)(-1)= dx-3x
2 4 2