Question

How do you solve `2w - 5 = 4`?

Answer 1

Add `5` to both sides then divide by 2

Explanation:

`2w-5 = 4`

`rArr` `color(white)("XXXX")` `2w = 9` `color(white)("XXXX")`since you can add a constant to both sides of an equation without changing the validity of the equation.

`rArr` `color(white)("XXXX")` `w = 9/2` `color(white)("XXXX")`since you can divide both sides of an equation by a non-zero constant without changing the validity of the equation.