11 - [(-8) - {10 - (9 – 7 – 4)}]
Their is a bar bracket in 7-4
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6
Answer:
23
Explanation:
11 - [(-8) - {10 - (9 - 7 – 4)}]
= 11 - [(-8) - {10 - (9 - 3)}]
= 11 - [(-8) - {10 - 6}]
= 11 - [(-8) - 4]
= 11 - [-12]
= 11 + 12
= 23
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