Lösungsweg?

8y + 12 = -44 + 16y  | +44

8y + 56 = 16y  | -8y

56 = 8y  | :8

7 = y

 

Probe:

8*7 + 12 = -44 + 16*7

56 + 12 = -44 + 112

68 = 68

 

:)