Question

I really need help on how to do this please

Answer 1

   
$\displaystyle\\ 2x = 10\\\\ \frac{2x}{\boxed{2}} = \frac{10}{\boxed{2}} \\ \\ ~~x~\,=~5$

Answer 2

Write Number 2 in the two boxes

5 blocks
By plugging in x which is 5 into the equation 2x=10.