Tìm x, biết:nhanh hộ vs các boẹn ơi giải giùm ----- Nội dung ảnh ----- Bài 12: Tìm x, biết: 1. \( 2x + \frac{1}{2} = -\frac{5}{3} \) 2. \( \frac{1}{7} - x = \frac{3}{5} \) 3. \( -3x = \frac{6}{4} \) 4. \( 3 \cdot \frac{1}{2} x = \frac{5}{3} \) 5. \( 2x - \frac{3}{5} = -\frac{5}{8} \) 6. \( \frac{1}{4} x - \frac{7}{5} = -\frac{5}{3} \) 7. \( -\frac{2}{3} x + 2 = \frac{3}{4} \) 8. \( \frac{2}{5} x + \frac{3}{2} = \frac{5}{4} \) 9. \( -\frac{3}{4} x - \frac{5}{2} = \frac{4}{3} \) 10. \( -2x + \frac{3}{14} = \frac{1}{7} - \frac{4}{21} \) 11. \( -\frac{1}{2} x - \frac{1}{4} = \frac{2}{3} \) 12. \( -\frac{2}{3} \cdot \frac{4}{7} x = -1 - \frac{1}{2} \) 13. \( -3x + \frac{1}{2} = 2 - \frac{4}{3} \) 14. \( \frac{3}{4} x - \frac{5}{6} = -2 - \frac{2}{3} \) 15. \( \frac{3}{5} = 1 - \frac{1}{10} x - \frac{1}{2} \) 16. \( -2 \cdot \frac{1}{3} x - 3 = 1 - \frac{1}{6} \) 17. \( \frac{1}{2} - \frac{1}{5} x = \frac{3}{7} \) 18. \( -\frac{5}{2} x + 1 = \frac{3}{4} - 6 \) 19. \( 2x - \frac{2}{3} - 7x = -\frac{3}{2} - 1 \) 20. \( 2x - \frac{5}{2} + 1 = \frac{3}{4} - \frac{6}{10} \) |