Question

(F o G)(x) F(x)=x-6 G(x)=x-1

Answer 1

get rid of the circle first
that is always the first step
\[G\circ F(x)=G(F(x))\]

Answer 2

second step is to replace the general \(G\) by the specific one you have
in this case
\[F(G(x))=F(x-1)\]

Answer 3

third step is to replace the \(x\) in \(F(x)\) by \(x-1\)
you get
\[F(x-1)=(x-1)-6\]

Answer 4

last step is to do whatever algebra is needed to clean it up
in this case all you need to do is write \((x-1)-6-x-7\)

Answer 5

Well how did you get the -x-7?