Answer
$10$
Work Step by Step
RECALL:
$\log_b{x}=y \longrightarrow b^y=x.$
Use the rule above to write the given equation in exponential form, then solve the equation:
$\begin{array}{ccc}
&3^2 &= &x-1
\\&9 &= &x-1
\\&9+1 &= &x-1+1
\\&10 &= &x
\end{array}.$
Thus, $x=10$.
