Bài 11: Tìm x trong các tỷ lệ thức sau: 1) \( \frac{4}{x} = \frac{8}{x+1} \) 2) \( \frac{6}{x-3} = \frac{7}{x-5} \) 3) \( \frac{|4-x|}{3} = \frac{x-2}{5} \) 4) \( \frac{x-1}{x+5} = \frac{6}{7} \) 5) \( \frac{x-3}{x+5} = \frac{5}{7} \) 6) \( \frac{x}{x+16} = \frac{7}{35} \) 7) \( \frac{x-3}{5} = \frac{5-2x}{11} \) 8) \( \frac{7x+1}{4} = \frac{2x-9}{3} \)

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Bài 11: Tìm x trong các tỷ lệ thức sau:
1) \( \frac{4}{x} = \frac{8}{x+1} \)
2) \( \frac{6}{x-3} = \frac{7}{x-5} \)
3) \( \frac{|4-x|}{3} = \frac{x-2}{5} \)
4) \( \frac{x-1}{x+5} = \frac{6}{7} \)
5) \( \frac{x-3}{x+5} = \frac{5}{7} \)
6) \( \frac{x}{x+16} = \frac{7}{35} \)
7) \( \frac{x-3}{5} = \frac{5-2x}{11} \)
8) \( \frac{7x+1}{4} = \frac{2x-9}{3} \)