The value of x is 7 because 8/24 = 1/3 so find 1/3 of 21
Answer:

Step-by-step explanation:
1. Combine like terms
2y-7y = -5y
-5y=5
2. Divide by -5 and the answer is 
Answer:
Step-by-step explanation:
I believe the correct answer is the third answer.
Hope this helps! :)