Answer:
assuming 10 cups it 10 parts then the answer is 4 cups of seltzer
n =-19
Step-by-step explanation:
3* (n+7) = -36
Distribute
3n+21 = -36
Subtract 21 from each side
3n+21-21 = -36-21
3n = -57
Divide by 3
3n/3 = -57/3
Answer: A. -5/4
Forgive me if I am wrong, but I beleive the answer is F