Given the system: $5$y$+3$ y$+$dy$/$dt $+4$y$($t$)=$ u$($t$)($a$)$Derive the dynamic equation $($state equations and output equations$)$ in vector$-$matrix form$($e$.$g$.,$ x$=$ Ax $+$ Bu$,$ y $=$ Cx$+$Du$)$in both CCF and OCF. $($b$)$Draw the signal flow graph of this system using CCF$.$Denote X$1($s$),$X$2($s$),$X$3($s$),$sX$1($s$),$ sX$2($s$),$sX$3($s$),$U$($s$),$Y$($s$)$ in the diagram.