Question

How do you solve `\frac { x } { 3} = 12.9`?

Answer 1

See a solution process below:

Explanation:

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

`color(red)(3) xx x/3 = color(red)(3) xx 12.9`

`cancel(color(red)(3)) xx x/color(red)(cancel(color(black)(3))) = 38.7`

`x = 38.7`