Tìm x, biết: a) \( x + \frac{-7}{15} = -1 \frac{1}{20} \); b) \( \left( \frac{3}{2} - x \right) \cdot \frac{1}{4} = -1 \frac{1}{20} \)

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Bài 2: Tìm x, biết:
a) \( x + \frac{-7}{15} = -1 \frac{1}{20} \)

b) \( \left( \frac{3}{2} - x \right) \cdot \frac{1}{4} = -1 \frac{1}{20} \)

c) \( \frac{1}{2}x + \frac{3}{5}(x - 2) = 3 \)

d) \( \frac{11}{12}x + \frac{3}{4} = -\frac{1}{6} \)

e) \( 3 - \left( \frac{1}{6} - x \right) \cdot \frac{2}{3} = \frac{2}{3} \)

f) \( \frac{2}{3}x + \frac{1}{2} = \frac{3}{10} - \frac{1}{5} \)