Answer
$13$.
Work Step by Step
Let the number is $x$.
Twice a number is $=2x$.
Subtract $2x$ from $35$ is equal to $9$.
Mathematical equation is
$\Rightarrow 35-2x=9$
Subtract $35$ from both sides.
$\Rightarrow 35-2x-35=9-35$
Simplify.
$\Rightarrow -2x=-26$
Divide both sides by $-2$.
$\Rightarrow \frac{-2x}{-2}=\frac{-26}{-2}$
Simplify.
$\Rightarrow x=13$
Hence, the number is $13$
