Question

1-[7-{5-3(9-(3-6))}]

Answer 1

operatio inside bracket is to be done first

so first 3-6=-3
then 9-(-3)=9+3=12
then 12*3=36
then 5-36=-29
then 7-(-29)=36
then 1-36=-35

this is answer to the question typed by you






if your question is like the below
[no bracket in beteween 9 and (3-6)]

11-[7-{5-3(9-3-6)}]
=> 11-[7-{5-3(0)}]
=> 11-[7-{5-0}]
=> 11-[7-{5}]
=> 11-[7-5]
=> 11-[2]
=> 11-2
=> 9