Determinants

Find values of x, if (i) \(|\begin{smallmatrix}2&4\\ 5&1\end{smallmatrix}|=|\begin{smallmatrix}2x&4\\ 6&x\end{smallmatrix}|\) (ii) \(|\begin{smallmatrix}2&3\\ 4&5\end{smallmatrix}|=|\begin{smallmatrix}x&3\\ 2x&5\end{smallmatrix}|\)