The replacement set is
.
The equation is
.
Replace n in
with each value in the replacement set and check whether
the equation is true.
\| \
n \ | \
\
| \
\
True or false \ | \
| \
7 \ | \
\
| \
\
False \ | \
| \
42 \ | \
\
| \
\
True \ | \
| \
343 \ | \
\
| \
\
False \ | \
Since n = 6 makes the equation true, the solution of
is 6.
The solution set is {6}.