Question

45-{37-4x{30-(8+4)x2]:2}

Answer 1

Resposta:

20

45-{37-4x{30-(8+4)x2]:2}

45-(37-4(30-12x2)÷2)

45-(37-4(30-24)÷2)

45-(37-4x6÷2)

45-(37-12)

45-25

$\rightarrow\boxed{\boxed{\sf{20}}}\checkmark$

Explicação passo-a-passo:

(espero ter colaborado)