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Question

From the sum of 7a – 2b + 11 and -2a -5, subtract 7a – b + 4.


A

– 2a + b + 2

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B

– 2a – b + 2

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C

– 2a – b – 2

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D

2a + b + 2

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Solution

The correct option is B

– 2a – b + 2


(7a – 2b + 11) + (– 2a – 5) – (7a – b + 4)

= 7a – 2b + 11 – 2a – 5 – 7a + b – 4

= – 2a – b + 2


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