Which of the following equations is equivalent to 7 = 2y + 9? a.) -3 = 2y + 1 b.) 8 = 9y - 1 c.) -2 = y – 1 d.) -4 = 2y + 6

Mathematics · College · Sun Jan 24 2021

Answered on

We have,

7 = 2y + 9

Subtracting both sides by 11, we get 

7 - 11 = 2y + 9 - 11

-4 = 2y - 2

Dividing both side by 2, we get 

-2 = y -1

 

Hence, option (C) is correct. 

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