can someone please help me explain how they got this answer and can someone please show me the steps into solving this question?

Question

Q: Four more than the quotient of a number and three is at least nine.

Answer 1

x/3 + 4 >= 9

Now, subtract 3 from each side.

x/3 + 4 - 4 >= 9 - 4

x/3 >= 5

Now you do the final part.

Answer 2

x>15

Answer 3

right

Answer 4

Right
x >=15

Answer 5

ok thank you :D

Answer 6

4 more than the quotient of an unknown and 9 is no less than 15. Explain how to find the answer