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If $P = - (x - 2), Q = - 2 (y + 1) and R = - x + 2 y$ then the value of ‘a’, when $P + Q + R = ax$

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-2x

-2

+2x

answer is B.

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Detailed Solution

$P + Q + R = - x + 2 - 2 y - 2 - x + 2 y ∣ = - 2 x$

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