Question

a) [(+10)+(-7)]+(-8)= b)[(-18)+(+3)]+(+7)= c) [(-20)+(+18)]+(13)= ​

Answer 1

Respuesta:

a) [(+10)+(-7)]+(-8)=

=[3]+(−8)=  

=−5

b)[(-18)+(+3)]+(+7)=

=[−15]+(+7)=  

=−8

c) [(-20)+(+18)]+(13)=

=-2+(13) ​

=11

Answer 2

Respuesta:

A) -5 B)-8 C)11

Explicación paso a paso:

a)

[(+10)+(-7)]+(-8)

10−7−8

3−8

−5

b)

[(-18)+(+3)]+(+7)

−18+3+7

−15+7

−8

c)

[(-20)+(+18)]+(13)

−20+18+13

−2+13

11