Write an expression to represent two less then three times a number

less: means subtract

than: means swap the order

times: means multiply

a number: means use a variable to identify the unknown

two less than three times a number

2 - ↔ 3 x n ⇒ 3n - 2

Answer: 3n - 2

An expression would be 3x-2

x represents the unknown number and the phrase "two less" means you subtract two.