Provide an Appropriate Response $K$ Makes This Equation Equivalent To $x=3$ $\frac{9}{\mathrm{~K}+\mathrm{x}}=3$

Short Answer

Provide an appropriate response.
-What value of $K$ makes this equation equivalent to $x=3$ ?
$\frac{9}{\mathrm{~K}+\mathrm{x}}=3$