Hi I hope you understand that I’m sorry to you and
Answer:
a.
Step-by-step explanation:
y = 2/3 x + 7
3 * y = 3 * (2/3 x + 7)
3y = 2x + 21
2x - 3y = -21
-2x + 3y = 21
Answer: a.
I assume B, since you start with the sum of 16, then break it down and get "9+1=10, 10+6=16"