40+90:{9+48:(a+6)}=46



URGENT DAU COROANA !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


Răspuns :

90:[9+48:(a+6)]=46-40
9+48:(a+6)=90:6
48:(a+6)=15-9
a+6=48:6
a=8-6
a=2