Question

2. Write an expression for the phrase, "The sum of 15 and twice a number.

Answer 1

2x + 15

Explanation:

Twice of a number is just the number times 2; so, if x is a number, then twice x is 2x. The sum of 15 and a number is just the number plus 15; so, the final expression will be 2x + 15.

Hope this helps :)