Question

Calcula quitando paréntesis

+7-12+(-5+6)-7=

-5-(+12-5)+4=

-(+3-2+4-6)+(-1+7)-12=

+12-(+16-11+3)-(-3+5)=

-8+(+5-9)-6-(-8+3+5)=
Doy coronita ​

Answer 1

+7-12+(-5+6)-7=

+7-12+1-7=

-11

-5-(+12-5)+4=

-5-7+4=

-8

-(+3-2+4-6)+(-1+7)-12=

-(-1)+6-12=

1-6-12=

-5

+12-(+16-11+3)-(-3+5)=

+12-8-2=

2

-8+(+5-9)-6-(-8+3+5)=

-8-4-6-0=

-18