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Find $x$ such that $\left\Vert \begin{bmatrix} x-1\\\ 2x\\\ 1\end{bmatrix}\right\Vert = 3$.

Select ALL that apply.

A

$1$

B

$-1$

C

$\dfrac{7}{5}$

D

$\dfrac{3}{5}$

E

$\dfrac{7}{4}$

F

$-\dfrac{3}{4}$

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