musicalelsaisbored musicalelsaisbored

08-10-2017
Mathematics

contestada

What expression is equivalent to 3y - 21? A. 3(y - 21) , B. 3(3y - 21) , C. 3(3y - 7) , D. 3(y - 7) . Need help quickly! Thanks <3

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abbybmth abbybmth

08-10-2017

It's D, 3(y-7) because that would be 3*y - 3*7 which is 3y-21. Hope this helped!

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bimalthaent5 bimalthaent5

08-10-2017

D. 3(y-7)= 3y-21
= 3y-21= 3y-21

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