Question

b)52-{12+[15-(8-4)]}​

Answer 1

Resposta:

r=29

Explicação passo-a-passo:

$52-\{12+[15-(8-4)]\}=\\ 52-\{12+[15-4]\}=\\ 52-\{12+11\}=\\ 52-23=\\ 29$

Answer 2

52-{12+[15-(8-4)]}

52-{12+[15-4]}

52-{12+11}

52-23

29

R= 29