Question

Simplify: 20 – [6 – {5 +3(9 - 4 − 5 )}]​

Answer 1

Step-by-step explanation:

20 – [6 – {5 +3(9 - 4 − 5 )}]​       [B.O.D.M.A.S rule] (First round bracket)

= 20 – [6 – {5 +3×0}]​        [Then curly bracket]

= 20 – [6 – {5 +0}]​

= 20 – [6 – 5]​              [Then square bracket]

= 20 – 1              [At last subtraction]

= 19 (Ans)