Question

b) (–42) – (–7) – (–12) + (+20) =
(ignora o b)
(me diz quanto é pfv we n eu reprovo)​

Answer 1

(–42) – (–7) – (–12) + (+20) =

-42+7-(-12)+20

-35-(-12)+20

-35+12+20

-23+20

= -3

Espero ter ajudado!!