( 4a 8a) = ( 12a) nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp;=12a ...

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A+B+C=N (N Fixed), with Lower Limit

Simplify:iv -...

Question

Simplify:

(iv) $- (- 4 a - 8 a)$ .

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Solution

$- (- 4 a - 8 a) = - (- 12 a)$

$= 12 a$

$∵$ [ $- 1 \times - 1 = 1$ ]

Hence, $- (- 4 a - 8 a) = 12 a$ .

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