Question (131/147)

Simplify: 18 - [5 -{6 + 2(7 - 8 - 5)}]

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(A)  13

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(B)  15

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(C)  27

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(D)  32

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Question (132/147)

Find the value of X in below expression:

`(128 -: 16 xx X - 7 xx 2)/(7^2 - 8 xx 6 + X^2) = 1`

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(A)  3

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(B)  14

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(C)  16

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(D)  17

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