11 - 12 + (-9) - (-6)

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-4

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-5

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Solution

The correct option is B -4
11 - 12 + (-9) - (-6)
= 11 - 12 - 9 + 6
= 11 - 12 - 9 + 6
Arrange positive and negative integers into grouped,
= 11 + 6 - 12 - 9
= 17 - (12 + 9)
= 17 - 21
= -4

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