Tìm x, y, z:

a) \(\left|x+\dfrac{19}{5}\right|+\left|y+\dfrac{1890}{1975}\right|+\left|z-2005\right|=0\)

b) \(\left|x+\dfrac{3}{4}\right|+\left|y-\dfrac{1}{5}\right|+\left|x+y+z\right|\) = 0

c) \(\dfrac{16}{2^x}=1\)

d) \(\left(2x-1\right)^3=-27\)

e) \(\left(x-2\right)^2=1\)

f) \(\left(x+\dfrac{1}{2}\right)^2=\dfrac{4}{25}\)

g) \(\left(x-1\right)^2=\left(x-1\right)^6\)

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