Răspuns :
Răspuns:
234:9+[4000-(31+7)x15] :5-219:3
234:9+(4000-38x15):5-219:3
234:9+(4000-570):5-219:3
234:9+3430:5-219:3
26+686-73
712-73=639
243÷9+[4000-(31+7)×15]÷5-219÷3=
=27+(4000-38×15)÷5-73=
=27+(4000-570)÷5-73=
=27+3430÷5-73=
=27+686-73=
=713-73=
=640