Question

efectuati {[(169:13-2^3):5+(7·2^3-2·3):5+2^3]:19+5}·2^3-2^4·3 repede dau coroana

Answer 1

{[(13-8):5+(7×8-6):5+8]:19+5}×8-16×3=
={[5:5+(56-6):5+8]:19+5}×8-48=
=[(1+50:5+8):19+5]×8-48=
=[(1+10+8):19+5]×8-48=
=[(11+8):19+5]×8-48=
=(19:19+5)×8-48=
=(1+5)×8-48=
=6×8-48=
=48-48=
=0