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Expression Formation

Add -9a + -2a...

Question

Add {(-9a) + (-2a) + 5a}

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-4a

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-6a

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Solution

The correct option is D -6a

= ( -9a -2a ) + 5a

= -11a +5a

= a( -11 +5 )

= a (5-11)

= a(-6)

= -6a

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