Question

Use the equation z = n - 7 to find the value of z when n
9.
Z =

Answer 1

`z=2`

Explanation:

`z=n-7`

In this case, I'm assuming that you're trying to say that n = 9.

1. Substitute in 9 for n

`z = (9)-7`

2. Combine like terms

`z=9-7\\z=2`