Odpowiedzi

2009-11-27T15:00:31+01:00
A) (x-3)+3*(x-1)=x-3+3x-3=4x-6
b)(x+7)-4*(3x+2)= x+7-12x-8=-13x-1
2009-11-27T15:19:22+01:00
A) (x-3)+3*(x-1)=
x-3+3x-3=
4x-6



b) (x+7)-4*(3x+2)=
x+7-12x-8=
-11x-1