Question

4) { 8 + 6 + [ - 5 + (16 x 3) + 9] + 20}

Answer 1

{ 8 + 6 + [ - 5 + (16 x 3) + 9] + 20 } =

{ 14 + [ - 5 + 48 + 9 ] + 20 } =

{ 14 + [ 43 + 9 ] + 20 } =

{ 14 + 52 + 20 } =

66 + 20 =

86

Bons Estudos!!!