evaluate (2a-3b+7ab-21)-(11-7b+5a-10ab)
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Step-by-step explanation:
(2a -3b+7ab-21)-(11-7b+5a-10ab)
=2a-3b+7ab-11+7b-5a+10ab
=2a-5a-3b+7b+7ab+10ab-11
= -3a +4b + 17ab -11
i am not sure if it is correct but if it is then pls mark me the brainliest
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