The equation is
.
Solve the equation.
\
(Original equation)
Equality for exponential functions property:
if and only if
.

(Add
to each side)
(Apply additive inverse property:
)
(Divide each side by
)
(Simplify)
Check solution for
-values.
(Original equation)
(Substitute
)
(Evaluate powers)
(Subtract:
)
The value is
.
The value of
is
.