Răspuns:
Desigur, să rezolvăm aceste ecuații pas cu pas:
1. \( (8 \times 9 - \frac{4}{2}) - (91 - 9 \times 9) = 9 \)
2. \( 100 - \frac{(27 + 7 \times 6 - \frac{48}{8})}{7} = 91 \)
3. \( \frac{(4 \times 8 + 3 \times 9 + 21)}{10 \times (40 - 9 \times 4)} = -\frac{1}{27} \)
4. \( \frac{56}{100 - 8 \times 5 - 6 \times 5 - 7 \times 3 - 1} = \frac{2}{9} \)
5. \( \frac{(24 + 6 \times 2)}{4} + 7 - \frac{(28 - \frac{12}{3})}{6} = 11 \)
6. \( \frac{(54/6 \times 3 - 6 \times 2)}{3} = 6 \)
7. \( \frac{(2 \times 3 \times 3)}{2} \times (45/9 + 72/8 - 16/2) = 54 \)
8. \( 4 \times 3 + 15 - 7 \times 2 + 37 - 8 \times 6 = 27 \)
9. \( 19 + (6 \times 7 - 18) - 2 \times 9 = 20 \)
10. \( 73 - 58 + 29 - 4 = 40 \)
11. \( \frac{24}{8} \times 3 \times \frac{4}{6} = 9 \)
12. \( 30 + \frac{32}{8} + 8 \times 7 - \frac{100}{10} = 49 \)
13. \( 20 - \frac{(3 \times 5 - 2 + 3)}{(26-9 \times 2)} = 18 \)
14. \( 10 \times \frac{4}{5} \times 3 + 32 - \frac{32}{8} \times 7 = 50 \)
15. \( 89 + \frac{64}{8} \times 7 - \frac{28}{7} \times 4 = 121 \)
16. \( (\frac{25}{5} - \frac{7}{7}) + (\frac{36}{9} + 8 \times 0) = 5 \)
17. \( 815 - \frac{24}{2} \div 2 = 803 \)
18. \( \frac{50}{10} \div 5 + \frac{90}{9} = 12 \)
19. \( 12 + \frac{6}{3 + \frac{9}{3}} = 14 \)
