Subtract the sum of 3a + 2b – c and 5b – 6a +2ab from the sum of 9b -11ab and -4a + 21ab
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Step-by-step explanation:
3a+2b-c
+(-6a)+5b+2ab
____________
-3a+7b+2ab-c
____________
9b-11ab
+(-4a)+21ab
___________
5a+10ab
____________
according to question
5a+10ab-(-3a+7b+2ab -c)=8a+-7b+8ab+c
it is your right answer friend, I hope it helps you
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