Tìm x, biết: a) \(-\frac{2}{3} - (x + 3) = -\frac{5}{6}\); b) \(\frac{3}{4} - \frac{2}{7} : (x - 2) = -\frac{3}{14}\)

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Bài 6. (1,0 điểm). Tìm x, biết:
a) \(-\frac{2}{3} - (x + 3) = -\frac{5}{6}\)
b) \(\frac{3}{4} - \frac{2}{7} : (x - 2) = -\frac{3}{14}\)
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