Răspuns :
391+592:[(18x32+6x27):6-5x23]=
= 391+592:[ (576+162):6-115]=
= 391+592:(738:6-115)=
= 391+592:(123-115)=
=391+592:8=
= 391+74
= 465
391+592:[(18x32+6x27):6-5x23]=
= 391+592:[ (576+162):6-115]=
= 391+592:(738:6-115)=
= 391+592:(123-115)=
=391+592:8=
= 391+74
= 465