Respuesta :

apologiabiology
twice (2 times) the sum (quantity being added) of a number and 5 (x+5)
2 times (x+5)
2(x+5)

3rd option
sum of a number and 5 = x + 5 
twice the sum of a number and 5 = 2 (x+5)
so

answer is 2(x + 5) third choice

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