EVALUATE 3x + 2y - 2z WHEN x=5, y=2, AND z=1 ???

21

Please try again, noting the signs.

17

3x + 2y - 2z

(3 * 5) + (2 * 2) - (2)
15 + 4 - 2 = ?

To evaluate the expression 3x + 2y - 2z when x = 5, y = 2, and z = 1, you need to substitute the given values into the expression and perform the necessary calculations.

Here's how you can solve it step by step:

Step 1: Replace x with 5, y with 2, and z with 1 in the expression:

3(5) + 2(2) - 2(1)

Step 2: Simplify the multiplication:

15 + 4 - 2

Step 3: Perform the addition and subtraction:

19 - 2

Step 4: Finally, calculate the result:

17

Therefore, the value of the expression 3x + 2y - 2z when x = 5, y = 2, and z = 1 is 17.