Answer :

I think the answer is 17
solution of () is 23-8=15
solution of {}is 6+15-15 which is 6 on applying BODMAS rule
finally 9+6=15

amru
9+{6+5*3-(69/3-8*1)}
=9+{6+5*3-([23-8*1])}
=9+{6+5*3-(15)}
=9+{6+15-15}
=9+6
=15

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