The sentence is, three less than twice a number is at most 5.

Let n be the number

The word “twice” indicates multiplication by 2. So, twice a number is .

The word “at most” indicates the symbol “”

The word “less than” can be represented as “<” symbol.

Rewrite the sentence into expression as,

The inequality is

                          (Subtract 3 from each side)

                               (Subtract: )

                               (Apply Commutative property: )

                                    (Apply Additive inverse property: )

                                       (Apply Additive identity property: )

                                  (Divide each side by 2)

                                         (Cancel common terms)

                                (Multiply each side by negative one and flip the symbol)

                                        (Product of two same signs is positive)

The inequality is .