Answer
$(-\infty, 6) \cup (6, +\infty)$
Work Step by Step
RECALL:
The denominator of a rational expression is not allowed to be equal to zero since division of zero is undefined.
Find the value of $x$ that will make the denominator 0 by equating the denominator to 0 and solving the equation to obtain:
$x-6=0
\\x=6$
Thus, the value of $x$ cannot be $6$.
This means that the domain of the variable is any real number except $6$.
In interval notation, the domain of the variable is:
$(-\infty, 6) \cup (6, +\infty)$
