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Which expression represents the phrase "twice the sum of a number and three"?

 

-2n + 3

-2+(2n+3)

-2(2n−3)

-2(n+3)

 Aug 23, 2017
 #1
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Assuming the bullet points are not negative signs,

let's look at "the sum of a number and three." 

 

That would obviously be n+3, where n is the 'number.'

Look at the phrase again.

"Twice the sum of a number and three,"

That would be twice of n+3

 

2*(n+3), which is 2(n+3)

 

So it is the fourth answer.

 Aug 23, 2017

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