# The numbers x, y, and z are the first three terms of an arithmetic sequence. How do you express z in terms of x and y?

##### 1 Answer

Assuming

#### Explanation:

Each arithmetic sequence has a starting point

You get the next term by adding the constant number

So, the first term is

The second term is

The third term is again

So, if the first term is

This is how you express

and so