what does 9y =27 equation mean

Hello!
Explanation:
First, you had to divide by 9 from both sides of an equation.
[tex]\frac{9y}{9}= \frac{27}{9}[/tex]
Then, you simplify.
[tex]27/9=3[/tex]
You can also multiply/divide by the numbers.
[tex]27/3=9[/tex]
[tex]3*9=27[/tex]
[tex]9*3=27[/tex]
[tex]\boxed{y=3}[/tex]
Hope this helps!
Thank you!
Have a great day!