Dau COROANA , e urgent
Ajuati ma , va rog!

Răspuns:
Explicație pas cu pas:
=2019+((110-(30+x+10x+3+(100x+10x)/x)/4)*9)-278=2434
((110-(11x+30+3+110)/4)*9=2434+278-2019
(11/4)*x=-(2434+278-2019)/9+110-143/4
x=(110-(2434+278-2019)/9-143/4)*4/11= -1
x= -1