Question

Double the sum of 11.9 and a number

Answer 1

The answer to this is 2(11.9x).

Answer 2

Double the "sum of 11.9 and a number"

Let a number = x.

Note that sum of 11.9 and a number (x) is first

Also, note that double means to "multiply by 2)

2(11.9 + x) is your expression

hope this helps