Aufgabe 2 d)

 

 

-  (8x – 10) – 3              =     (x + 9)                Anwendung der Strategie 1

 

-2x + 2,5 – 3                    =    1,5x + 13,5

 

-2x – 0,5                           =    1,5x + 13,5          | + 0,5

 

-2x                                      =    1,5x + 14             | – 1,5x

 

-3,5x                                  =                 14              | : -3,5

 

                   x                       =                 -4