## Rewrite equation to linear form

Hi everyone,

I'm trying to rewrite an equation to be able to solve it as a linear problem. The equation is:

$P_1 H H^{-1} X_1 = P_2 X_2$,
where $P_1$ and $P_2$ are 3mx4 matrices, $X_1$ and $X_2$ are 4xn matrices and $H$ is a 4x4 matrix.

I rewrote this equation to:
$P_1 H X_1 = P_2 H X_2$

Now I want to write this equation in the form:
$A H = 0$

Can anyone help me with this? How can I rearrange the formula to the above format?

Thanks,

Tim