Odpowiedzi

2010-02-28T15:37:08+01:00
6x+(-11y)=6x-11y
-2a+(-2½)=-2a-2½
2010-02-28T15:37:23+01:00
1. 6x - 11y

2. -2a+(- 2½ ) = - 2a - 2½
2010-02-28T15:39:47+01:00
6x+(-11y)= 6x-11y

-2a+(- 2 ½) = -2a-2½