Question

Resolva: a) {24-[35-(7-4-6)-(3+2)]}+57

Answer 1

Olá

Vamos lá,

= {24-[35-(7-4-6)-(3+2)]}+57
={24-[35-(-3)-(5)]}+57
={24-[35+3-5]}+57
={24-[38-5]}+57
={24-[33]}+57
={24- 33}+57
={24- 33}+57
=-9+57
=48