Question

Evaluate the following expression using the values given.
Find 4x - y - 2z if x = -2, y = 3, and z = -2

Answer 1

-15

15

-7

7

Answer 2

We just need to plug in the given values for the variables. So, plugging in x=-2, y=3 and z=-2 we get:
\[4(-2) -3 -2(-2)\]Simplifying this we get:
\[-8 -3 +4 = -11 +4=-7\]