Răspuns:
(120 - 21 × 3 + 10 - 4) × 2 ÷ 3 - [6 × 9 - (80 - 18 × 4) × 4] + 18) ÷ 2
= (120 - 63 + 10 - 4) × 2 ÷ 3 - [54 - (80 - 72) × 4] + 18) ÷ 2
= (63 + 10 - 4) × 2 ÷ 3 - [54 - 8 × 4] +18) ÷2
= (69) ×2 ÷3 - [54-32] +18) ÷2
=138÷3-[22]+18÷2
=46-22+9
=24+9
=33
Sper ca te am ajutat!