Question

9*(-5)-(-7)4-(-3)*(-7)=

Answer 1

1) 9*(-5)= -(9*5)=-45

2) (-3)*(-7)= +10

3)-45-(-7)=-45+7=-(45-7)=-38

4) 4-10=4+(-10)=-10-4=-6

5) -38+(-6)=-(38+6)= -44

Answer 2

=-45+7*4+3*(-7)=-45+28-21=-38
ответ: -38