If 3a = 27, what is a?

To determine the value of ( a ) from the equation ( 3a = 27 ), you need to isolate ( a ) on one side of the equation. This is done by dividing both sides of the equation by 3.

So, you have:

[

3a = 27

]

Dividing both sides by 3 yields:

[

a = \frac{27}{3}

]

Calculating that gives:

[

a = 9

]

This shows that the correct value of ( a ) is 9, which matches the selected response. Understanding the process of isolating the variable and performing division is key in solving equations like this one.