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80:2+(50*2:10+90)+10-25*4=

Răspuns :

80:2+(50x2:10+90)+10-25x4=
=80:2+(100:10+90)+10-25x4=
=80:2+(10+90)+10-25x4=
=80:2+100+10-25x4=
=160+100+10-100=
=200+10-100=
=210-100=
=110