Select the functions f$($x$)=$ x$+5$ and g$($x$)=5$x$.$ Select the Operation f $$g and Combine Functions$$ box, and slowly slide the$$ x$-$slider to the right until x $=4.$ What is the value of $($f$-$g$)(4)$Select the functions f$($x$)=$ x$+5$ and g$($x$)=5$x$.$ Select the Operation f $$g and Combine Functions$$ box, and slowly slide the$$ x$-$slider to the right until x $=4.$ What is the value of $($f$-$g$)(4)$