Question

53-{20-[30-(15-1+6)+2]} Resposta com calculo

Answer 1

53- {20 - [30 - 20+2]}

53-{20 - 12}

53- 8

45

Answer 2

Seja $\text{L}=53-\{20-[30-(15-1+6)+2]\}$

 

Desse modo, temos que:

 

$\text{L}=53 - \{20-[30-20+2]\}$

 

$\text{L}=53-\{20-12\}$

 

Donde, obtemos:

 

$\text{L}=53-8=45$