Show me the steps to solve Example $4\mathrm{.}11$: Find the shear and moment at points $\backslash ($ A$,$ B $\backslash ),$ at $6$ m $($under $5$ k load$)$ from $\backslash ($ B $\backslash )$ and $\backslash ($ C $\backslash ).\backslash ($ A $\backslash )$ and $\backslash ($ C $\backslash )$ are roller and $\backslash ($ B $\backslash )$ and $\backslash ($ E $\backslash )$ are hinges.$|$