Aufgabe 1 d)

 

 

 (x – 2)                            =    x + 1                      Anwendung der Strategie 1

 

1,2 (x – 2)                        =    x + 1

 

1,2x – 2,4                         =    x + 1                      | – 1

 

1,2x – 3,4                         =    x                             | – 1,2x

 

                            -3,4        =    - 0,2x                     | : -0,2

 

                            17           =    x