36-[18-{14-(15-4÷2×2)}]

36 - [18 - {14 - (15 - 4 : 2 x 2)}]
= 36 - [18 - {14 - (15 - 4 : 4)}]
= 36 - [18 - {14 - (15 - 1)}]
= 36 - [18 - {14 - (11)}]
= 36 - [18 - {3}]
= 36 - 15
= 21

Hello friend !

Your answer :)

=> 36-[18-{14-(15-4÷2×2)}]

=> 36-[18-{14-(15-2×2)}]

=> 36-[18-{14-(15-4)}]

=> 36-[18-{14-11}]

=> 36-[18-3]

=> 36-15

=> 21

Therefore , the required answer is 21

:-) Hope it helps !