I need to align equations of the left.
I wrote the following according to this topic : Align equation left
\begin{flalign}
p(1-p)^2 (\alpha |001\rangle + \beta |110 \rangle).hc +p^2(1-p) (\alpha |110\rangle + \beta |001 \rangle).hc& \\ \rightarrow X_3 \left( p(1-p)^2 (\alpha |001\rangle + \beta |110 \rangle).hc +p^2(1-p) (\alpha |110\rangle + \beta |001 \rangle).hc \right) X_3& \\
= p(1-p)^2 (\alpha |000\rangle + \beta |111 \rangle).hc +p^2(1-p) (\alpha |111\rangle + \beta |000 \rangle).hc&
\end{flalign}
But the render is not good, and I have numerotations on the right :
The render is not good because as you can see the first line is not left aligned.
I don't understand what I did wrong (because in the topic associated they basically just use flalign as I did...??)