The equation is .

              (Subtract 4 from each side)

                    (Apply Additive inverse property: )

                                 (Subtract: )

Check:

To check the solution, substitute  in original equation.

            (Add: )                         

The statement is true.

Graph the solution on number line.

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• First draw a number line.
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• Mark a dot at 11 on  the number line.
\

The value of .