Question

Which algebraic expression represents the statement: the difference of three times a number and one.

3n + 1


3n – 1


n + 1


n – 1

Answer 1

3n +1

three times a number and one

Answer 2

Let the number be n.

Difference of three times a number and one
⇒3n - 1

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Answer: 3n - 1
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