Answer
{$-1,2$}
Work Step by Step
Given: $\dfrac{4x-2}{3}=2$
or, $4x-2=6 \implies x= 2$
Now, $\dfrac{4x-2}{3}=-2$
or, $4x-2=-6 \implies x=-1$
Hence, {$-1,2$}
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