Löse das lineare Gleichungssystem.


`{(-15x,+,10y,-,6z,-,10w,=,-35),(-18x,+,13y,-,6z,-,12w,=,-45),(-6x,+,4y,-,2z,-,4w,=,-16),(-15x,+,10y,-,6z,-,12w,=,-45):}`

x =  
y =  
z =  
w =