Va rog! Rezolvati:
2(x-y+3)-3(y-x+1)+(+2y-3x)=


Răspuns :

=2x-2y+6-3y+3x-3+2y-3x=2x-3y+3
2(x-y+3)-3(y-x+1)+(+2y-3x)=2x-2y+6-3y+3x-3+2y-3x=2x-3y+3