The equation is .

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

                      (Apply additive inverse property: )

                            (Apply additive identity property: )

                                  (Subtract: )

Check:

To check the solution, substitute  in original equation.

                            (Add: )

The statement is true.

Graph the solution on number line.

\
• First draw a number line.
\
• Mark a dot at on  the number line.
\

The value of .