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I've got this question:

Find the variable (hidden) in this expression:

$3X =\begin{bmatrix}0&3\\6&9\end{bmatrix}$

I've written down that $X$ equals to

$X=\begin{bmatrix}0&1\\2&3\end{bmatrix}$

is my answer wrong or right?

I'm not sure if this is the right place, but if it isn't , what is my mistake?

thanks

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    For some basic information about writing math at this site see e.g. [here](http://meta.math.stackexchange.com/questions/5020/), [here](http://meta.stackexchange.com/a/70559/155238), [here](http://meta.math.stackexchange.com/questions/1773/) and [here](http://math.stackexchange.com/editing-help#latex).2012-11-10

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Your answer is perfect, no mistake at all. Multiplying/dividing matrices by numbers is so easy: we multiply/divide all the elements in the matrix by that number.