Solve for $x$ in the equation, given $A=\left[\begin{array}{cc}-5& 1\\ -4& 0\\ 2& -3\end{array}\right]$ and $B=\left[\begin{array}{cc}1& -2\\ 2& 1\\ 4& 4\end{array}\right].$

$($a$)3x+2A=B$

$($b$)2A-5B=3x$

$($c$)x-3A+2B=0$