Question

Last month, Laura had x stamps. This month, she has doubled her collection to 120. Which of the following describes the given situation?

Answer 1

Let x be the number of stamps.

After a month the number of stamps doubled, this is expressed as 2x

Then, the equation described by the problem is:

`\begin{gathered} 2x=120 \\ \Rightarrow x=60 \end{gathered}`

Therefore, the initial number of stamps is 60.

The third option is the correct one. 2x=120