Answer
$x=2$.
Work Step by Step
The given equation is
$\Rightarrow 26-4x=9x$
Add $4x$ to both sides.
$\Rightarrow 26-4x+4x=9x+4x$
Simplify.
$\Rightarrow 26=13x$
Divide both sides by $13$.
$\Rightarrow \frac{26}{13}=\frac{13x}{13}$
Simplify.
$\Rightarrow 2=x$.
Check:-
$\Rightarrow 26-4(2)=9(2)$
$\Rightarrow 26-8=18$
$\Rightarrow 18=18$
True.
Hence, the solution is $x=2$.