Question

{90-[83-5.(22-9)]}÷12​

Answer 1

Explicação passo-a-passo:

{90-[83-5.(22-9)]}÷12

{90-[83-5.(13)]}÷12

{90-[83-65]}÷12

{90-[+18]}÷12

{90-18}÷12

72÷12

6

Resposta : 6

Answer 2

$\color{dodgerblue}{{\left\{90-[83-5.(22-9)]\right\}\div12}} \\ \color{dodgerblue}{{\left\{90-[83-5.13]\right\}\div12}} \\ \color{dodgerblue}{{\left\{90-[83-65]\right\}\div12}} \\ \color{dodgerblue}{{\left\{90-[83-65]\right\}\div12}} \\ \color{dodgerblue}{{\left\{90-[18]\right\}\div12}}$

$\color{dodgerblue}{{\left\{90-18\right\}\div12}} \\ \color{dodgerblue}{72\div12} = 6\color{green}{\checkmark}$