# How do you evaluate 2x − 6y + 2z − 5x − 3y + 8z?

Apr 15, 2018

$- 3 x - 9 y + 10 z$

#### Explanation:

Identify and combine like terms:

Like terms are in similar colors:

color(blue)(2x)color(red)(-6y)color(green)(+2z)color(blue)(-5x)color(red)(-3y)color(green)(+8z

$\textcolor{b l u e}{2 x - 5 x} \textcolor{red}{- 6 y - 3 y} \textcolor{g r e e n}{+ 2 z + 8 z}$

color(blue)(-3x)color(red)(-9y)color(green)(+10z