Question

50+{81:3+[9x5-2x(16-1)]}

Answer 1

50 + { 81 :3 + [ 9.5 - 2. (16 -1 ) ] }
50 + { 81 :3 + [ 9.5 - 2. (15 ) ] }
50 + { 81:3 + [ 45 -30 ] }
50 + { 27 + [ 15 ] }
50 + { 27 +15 }
50 + 42
92

Bons estudos!

Answer 2

50+{81:3+[9x5-2x+15]} 50+{81:3+20+7} 50+54 104