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Question

Solve : -11 + (-6) + 3 - (-5)

A
-9
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B
-19
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C
-20
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D
-10
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Solution

The correct option is A -9
-11 + (-6) + 3 - (-5)
= -11 - 6 + 3 + (additive inverse of -5)
= -11 - 6 + 3 + 5
= -(11 + 6) + 3 + 5
= -(17) + 8
= -17 + 8
Here, we form pair of negative and positive integers,
= -9 - 8 + 8 ( -17 = -9 - 8)
= -9

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