Question

How do you solve `3= 9- z`?

Answer 1

The answer is `6`.

Explanation:

To get the answer to this problem, `6`, you have to isolate the variable. This means you have to get the variable by itself.

As you can see in the problem, the variable, `z`, is being subtracted from `9`. The first step to isolating the variable is to subtract 9 from both sides. If you do this, the 9 will disappear from the right side. This is because you performed the inverse operation of the operation that is happening.

`3 - 9 = 9 - z - 9`

`-6 = -z`

There is one more step to isolate the variable. You have to divide the variable, currently `-z`, by `-1`. This will get rid of the negative sign next to the variable. After you do this, you will have successfully isolated the variable, and have found the answer.

`6 = z`