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11-09-2018
Mathematics

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find the difference (2ab+7a+1)-(8ab+9)

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11-09-2018

Hello.

The answer is: −6ab+7a−8

Distribute the Negative Sign:

=2ab+7a+1+−1(8ab+9)

=2ab+7a+1+−1(8ab)+(−1)(9)

=2ab+7a+1+−8ab+−9

Combine Like Terms:

=2ab+7a+1+−8ab+−9

=(2ab+−8ab)+(7a)+(1+−9)

=−6ab+7a+−8

Have a nice day

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