Question

3)a) {[(8 · 4 + 3) ÷ 7 + (3 + 15 ÷ 5) · 3] · 2 – (19 – 7) ÷ 6} · 2 + 12 = *

Answer 1

Resposta:

100

Explicação passo-a-passo:

{[(8 · 4 + 3) ÷ 7 + (3 + 15 ÷ 5) · 3] · 2 – (19 – 7) ÷ 6} · 2 + 12 =

{[(32 + 3) ÷ 7 + (3 + 3) • 3] • 2 – 12 ÷ 6} • 2 + 12

{[35 ÷ 7 + 6 • 3] • 2 – 12 ÷ 6} • 2 + 12

{[5 + 6 • 3] • 2 – 12 ÷ 6} • 2 + 12

{[5 + 18] • 2 – 12 ÷ 6} • 2 + 12

{23 • 2 – 12 ÷ 6} • 2 + 12

{46 – 12 ÷ 6} • 2 + 12

{46 – 2} • 2 + 12

44 • 2 + 12

88 + 12

100

Answer 2

Resposta:

100

Explicação passo-a-passo:

3)a)

{[(8 · 4 + 3) ÷ 7 + (3 + 15 ÷ 5) · 3] · 2 – (19 – 7) ÷ 6} · 2 + 12 =

= {[(32+3)÷7 + (3+3).3].2 - (12):6}.2 + 12

= {[35÷7 + 6.3].2 - 2}.2 + 12

= {[5 + 18].2 - 2].2 + 12

= {23.2 - 2}.2 + 12

= {46-2}.2 + 12

= 44.2 + 12

= 88 + 12

= 100

R.: 100