Question

How do you evaluate `z- 32= 40`?

Answer 1

`z = 72`

Explanation:

In the equation `z-32 =40` you want to isolate the `z`

To do this you have to get rid of `-32` which you can do if you add `32`. But in an equation you have to do the same to both sides else you are changing its value.

`z-32+32 =40+32" "larr` simplify both sides

`z = 72`