Question

calculati.:va rog cine ma poate ajuta​

Answer 1

Sper ca te-am ajutat!!! Succes!!!

Answer 2

A)[-18-(-15-22)-1]-[-24-(-45)]=

=[-18-(-37)-1]-(-24+45)=

=(-18+37-1)-21=

=18-21=-3

B)[+7-(25-68)]+[-14-(9+7)]=

=[+7-(-43)]+(-14-16)=

=(+7+43)+(-30)=

=+50-30=+20

C){-2-[7+(-3-18)-(-12)]-20}-15=

={-2-[7+(-21)+12]-20}-15=

=[-2-(7-21+12)-20]-15=

=(-2+2-20)-15=-20-15=-35

D)-17-{-16-[-15-(-14)]+13}-12=

=-17-[-16-(-15+14)+13]-12=

=-17-(-16+1+13)-12=

=-17+2-12=-27