Translate this phrase into an algebraic expression.

Question

9 increased by twice a number
Use the variable n to represent the unknown number.

Answer 1

The phrase "9 increased by twice a number" can be translated into the algebraic expression:

\( 9 + 2n \)

Here, \( n \) represents the unknown number, and "twice a number" translates to \( 2n \). The phrase "increased by" indicates addition, leading to the complete expression.