Question

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

Answer 1

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

Explanation:

`2 color(blue)(x) + a = 4`

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

Isolating `color(blue)(x`

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