# How do you solve 2x+a=4 for x?

May 12, 2016

color(blue)(x = (4 - a) /2

#### Explanation:

$2 \textcolor{b l u e}{x} + a = 4$

$2 \textcolor{b l u e}{x} = 4 - a$

Isolating color(blue)(x

color(blue)(x = (4 - a) /2