Question

50-{40-3.[5-(10-7)]}

Answer 1

50-{40-3.[5-3]}
50-{40-3.2}
50-{40-6}
50-34
16

Bons Estudos!!

Answer 2

50-{40-3.[5-3]} 
50-{40-3.2} 
50-{40-6} 
50-34 =16