Răspuns :
Răspuns:
-3 *(-4)-(+7)-5*(+2)-(-3)= 12-7-10+3=. -2.
1)-3*(-4)=3*4=12. 2)-5*2= -10
3) -(+7)=-7. 4) -(-3) = 3
5) 12-10-7+3=-2
Răspuns:
[tex] - 3 \times ( - 4) - ( + 7) - 5 \times ( + 2) - ( - 3) = \\ 12 - ( + 7) - 10 - ( - 3) = \\ 12 - 7 - 10 - ( - 3) = \\ 5 - 10 + 3 = \\ - 5 + 3 = \\ - 2[/tex]