The replacement set is 

Replace g in with each value in the replacement set and check

whether the equation is true or not.  \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

\ g \	\ \	\ True or false \
\ 78 \	\ \	\ True \
\ 79 \	\ \	\ False \
\ 80 \	\ \	\ False \
\ 81 \	\ \	\ False \

\

 Since g =78 makes the equation true, the solution of   is 78.

The solution set is .