Tìm x, \(|x - \frac{4}{7}| = \frac{1}{\frac{3}{7}}\)

SOS
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c) \(|x - \frac{4}{7}| = \frac{1}{\frac{3}{7}}\)

d) \(\frac{3}{4} \div \frac{2}{9} - | -3x + 2|\frac{2}{3} = \frac{3}{4}\)

e) \(|x - \frac{1}{3}| = |2 - 3x|\)

f) \(\left( \frac{3}{5}x - \frac{1}{5}x \right) - \frac{1}{3} = \frac{2}{3}\)