Which of the following expressions represents the phrase "twice the sum of a number and 5"?

2x + 5
2(5) + x
2(x + 5)
(x + 5) 2

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.