Question

Calcula.
a) (10-[2+(5-4)-1]} -2 =
b) 45+ +([25-(10-5)]} =
c) (20-2)-([(12-3) + 1] - 4) =​

Answer 1

Explicación paso a paso:

a) (10-[2+(5-4)-1]} -2=

(10-[2+1-1]}-2=

(10-[2]}-2=

10-0=10

b) 45+ +([25-(10-5)]} =

45+([25-5]}=

45+20=65

c) (20-2)-([(12-3) + 1] - 4) =

(18)-([9+1]-4)=

18-(10-4)=

18-6=12