Question

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

Answer 1

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

Answer 2

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