Answer
The equation has one solution, 4.
Work Step by Step
$\frac{2x+4}{x-3}=\frac{3x}{x-3}$
$(2x+4)(x-3)=3x(x-3)$ (Cross Products Property)
$2x+4=3x$ (Simplify the $x-3$ factor on both sides)
$x=4$
Check:
$(2\times4+4)/(4-3)=12; (3\times4)/(4-3)=12$
The equation has one solution, 4.