### Instruction: Find all solutions to the equation $\!\sqrt{2-3z} = 9$.  Express your answer as a common fraction.### Response: So we have $\!\sqrt{2-3z} = 9$.
Let's square both sides. That will get rid of the square root.
So we have $2-3z = 81$.
Now let's subtract 2 from both sides.
That gives us $-3z = 79$.
Now let's divide both sides by -3.
That gives us $z = -79/3$.