Question

How do you solve for x in `3x=a`?

Answer 1

See a solution process below:

Explanation:

Divide each side of the equation by `color(red)(3)` to solve for `x` while keeping the equation balanced:

`(3x)/color(red)(3) = a/color(red)(3)`

`(color(red)(cancel(color(black)(3)))x)/cancel(color(red)(3)) = a/3`

`x = a/3`

Or

`x = 1/3a`