# How do you evaluate x - 3y if x = 3 and y = -2?

Apr 30, 2016

$= 9$

#### Explanation:

The expression provided is:
$x - 3 y$

The values for variables are:
color(blue)(x=3), color(green)(y = -2

$x - 3 y = \textcolor{b l u e}{3} - \left(3 \cdot \textcolor{g r e e n}{\left(- 2\right)}\right)$

$= 3 + 6$

$= 9$