Question

Find 4x - y - 2z if x = -2, y = 3, and z = -2

Answer 1

This is just simple plugging in variables into an equation.
\[4x - y - 2z\]
\[4(-2) - 3 - 2(-2)\]
\[-8 - 3 - (-4)\]
\[-8 - 3 + 4\]
\[-8 + 1\]
\[-7\]

Answer 2

Substitute the values

Answer 3

thanks