Question

Sendo:

A= 32+{-15-[14-(-5)]-12}
B= {14-(-2)+[(-5)-(-39)]}
C= 9+(-23)-{60+[-11+(-11)-13]}

Encontre o valor de:
a)A+B. b)B-C. c)A-C.

Com contas, por favor​

Answer 1

A= 32+{-15-[14-(-5)]-12}

=32-15-19-12=-14

B= {14-(-2)+[(-5)-(-39)]}

=14+2-5+39=50

C= 9+(-23)-{60+[-11+(-11)-13]}

=9-23-60+11+11+13=-39

a) A+B=-14+50=36

b) B-C=50+39=89

c) A-C=-14+39=25