The inequality is .

Apply subtraction property of inequality: Subtract 4 from each side.

Apply commutative property of addition: a + b = b + a.

          (Apply additive inverse property: )

                (Additive identity property: )

                   (Subtract: )

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

                         (Product of two same signs is positive)

Check:

To check, substitute three different values for m into the original inequality : 1, a number less than 1, and a greater than 1.

Let three values are .

If then   (This is false)

If then   (This is false)

If then   (This is true).

Graph the Solution set on a number line.

Note: A dot means that this point is included in the solution set.

The inequality solution set is .