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

2 Answers

3 votes

twice the sum of a number and three

twice implies a 2

sum means you're adding

the sum is of a number let's say "n" and the number 3, the sum is n+3, twice that is 2(n+3)

User Matt Maclennan
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5 votes

Answer:

2(x+3)

Explanation:

Phrase: "twice the sum of a number and three"

Expression: To change the phrase into algebraic expression using variable.

"twice the sum of a number and three"

Let the number be x

Phrase: "sum of a number and three"


\Rightarrow x+3

Phrase: twice the (x+3)


\Rightarrow 2(x+3)

"twice the sum of a number and three" = 2(x+3)

Hence, The expression is 2(x+3)

User LindaQ
by
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