Tìm x, biết: a) \(\frac{5}{2} x - \frac{3}{4} = -\frac{1}{5}\)

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3. Tìm x, biết:

a) \(\frac{5}{2} x - \frac{3}{4} = -\frac{1}{5}\)

b) \(\frac{4}{5} \left(-\frac{1}{2} x - \frac{3}{5}\right) = -\frac{2}{3}\)

c) \(\left(\frac{1}{2} - x\right) + \frac{3}{4} = \sqrt{\frac{16}{25}}\)

d) \(\left(x - \frac{1}{3}\right)^2 = \frac{16}{9}\)

e) \((2x - 1)^3 = -\frac{8}{27}\)

f) \(\frac{2}{5} x - \frac{1}{2} = \frac{3}{5} x + \frac{7}{10}\)

g) \(-\frac{9}{4} - 2x = -\frac{5}{6} x + \frac{7}{2}\)

h) \(\left(-\frac{1}{3}\right)^{2x-1} = -\frac{1}{27}\)

i) \(\left(\frac{2}{3}\right)^{4x} = \left(\frac{8}{27}\right)^{8}\)