Answer:
1
Step-by-step explanation:
Answer: 5
I think the answer is 13.9% hehe
x = 1/7(k+12)
7x - 12 = k
Add 12 to each side
7x - 12+12 = k+12
7x = k+12
Divide each side by 7
7x/7 = (k+12)/7