The logarithm equation is
.
Apply power property of logarithm :
.

Apply quotient property of logarithm :
.

Apply one-to-one property of logarithm function :
if and only if
.

Consider
.

and 
and 
and 
and 
and
and
.
has no real solution.
Check logarithm equation at
.
Substitute
in
.

The logarithm equation exist at
.
Check logarithm equation at
.
Substitute
in
.

The logarithm equation exist at
.
The value of
is
.
The value of
is
.