2x - 3y - z Substitute the variables for the numbers provided for them 2(-2) - 3(3) - (-2) Multiply 2 by -2 -4 - 3(3) - (-2) Multiply -3 by 3 -4 - 9 - (-2) Subtract 9 from -4 -13 - (-2) Convert Subtract -2 from -13. It would be the same as adding 2 to -13. Final Answer: -11