# Question to this algebra question?

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If f(x)=3x-1 and f(a)=5, what is the value of a

If f(x)=3x-1 and f(a)=5, what is the value of a

##### 2 Answers

Jun 26, 2018

#### Explanation:

If

then

and

since we are told

we have

Jun 26, 2018

#### Explanation:

In other words, we are essentially being asked what is our input, when our output is

Let's set

We can add

Another way we can write this is

When we input

Hope this helps!