Question

How do you find the unknown value of `3timesa=12`?

Answer 1

`a = 4`

Explanation:

`3 xx a = 12`

To find the value of the unknown value `a`, we have to isolate it (make it by itself). To do that, we can divide both sides by `color(blue)3`:
`(3xxa)/color(blue)3 = 12/color(blue)3`

Therefore,
`a = 4`

Hope this helps!