The inequality is .

Apply addition property of inequality: Add 5 to each side.

              (Apply additive inverse property: )

                    (Apply additive identity property: )

                          (Add: )

Graph the solution set on a number line.

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

Check:

To check, substitute a number less than  or equal to 7 in

                   (Substitute )

                         (Subtract: )

The inequality  is true.

The inequality solution is .