9. 257 - [128-{26 - (6-4-1)}]
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Given :-
- 257 - [128-{26 - (6-4-1)}]
Solution :-
→ 257 - [128 - {26 - (6 - 4 - 1)}]
→ 257 - [128 - {26 - 5}]
→ 257 - [128 - 21]
→ 257 - 107
→ 250
Thank You!
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