Question

A)(-7)-(-5)+(-8)=
B)(+3)+(-2)+(+1)=
C)(+7)-(-6)-(-8)=
E)(-7)-(+2)-(-4)=
F)(-8)+(-6)-(-7)=

Answer 1

Resposta:

A) -10

B) 2

C) 21

E) -5

F) -7

Explicação passo-a-passo:

A)(-7)-(-5)+(-8)=

-7-(-5)+(-8)

-7+6+(-8)

-7+5-8

-15+5= -10

B(+3)+(-2)+(+1)=

3-2+1

4-2=2

C)(+7)-(-6)-(-8)=

7-(-6)-(-8)

7+6-(-8)

7+6+8

13+8=21

E)(-7)-(+2)-(-4)=

(-7)-2-(-4)

-7-2-(-4)

-7-2+4

-9+4=-5

F)(-8)+(-6)-(-7)=

-8+(-6)-(-7)

-8-6-(-7)

-8-6+7

-14+7= -7