Respuesta :

sunflower00
Answer:

-10b-7

Solution:

-11b-4- (-b+3)

Two equal characters in succession replace with addition.
- (-b) = b
-11b+b= 10

A negative factor in parentheses changes the plus and minus in the parenthesis.
-(+3)= -3

-4-3= -7

Otras preguntas