Answer
$x=8$
Work Step by Step
Using the properties of equality, the solution to the given equation, $
2x+9=25
$, is
\begin{array}{l}
2x+9-9=25-9
\\\\
2x=16
\\\\
\dfrac{2x}{2}=\dfrac{16}{2}
\\\\
x=8
.\end{array}
Checking:
\begin{array}{l}
2(8)+9=25
\\\\
16+9=25
\\\\
25=25
\text{ (TRUE)}
.\end{array}
Hence, the solution is $
x=8
$.