Question

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

Answer 1

Evaluate \[4x-2y-z\]\[x=2,y=3,z=-4\]

Plug in the values. What do you get?

Answer 2

\(\bf 4x - 2y - z\qquad x = {\color{red}{ 2}}\quad y = {\color{red}{ 3}}\quad z = {\color{red}{ -4}}\\ \quad \\
4x - 2y - z\implies 4\cdot {\color{red}{ 2}}-2\cdot {\color{red}{ 3}}-1\cdot {\color{red}{ -4}}\)