Question

d) 25 +{ 18- [5+(9-4) x4]}-12

Answer 1

$25 +[ 18- [5+(9-4) *4]]-12$

$25+[18-[5+5*4]]-12$

$25+[18-[5+20]]-12$

$25+[18-25]-12$

$25+[-7]-12$

$25-7-12$

$18-12$

$6$

Answer 2

Resposta:

Olá...

25+{18-[5+(9-4)×4]} -12

25+{18-[5+5×4]} -12

25+{18-[5+20]} -12

25+{18-25} -12

25+{-7} -12

25-7-12

18-12

6

Espero ter ajudado!!Bons estudos ☺ ☺