Question

Question #a8147

Answer 1

I got: `2x×(x-4)=9`

Explanation:

Call your unknown number `x` so you have twice that means "two times" and difference that means "subtraction" so you get:

`color(red)(2×)color(blue)((x-4))=color(green)(9)`

using the sequence of colors red-blue-green to distinguish the conditions in your question.