Question

Evaluate the following expression using the values given: Find 2x - 3y - z if x = -2, y = 3, and z = -2

Answer 1

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