[tex]\begin{gathered} \text{Step 1} \\ \frac{3x\text{ - 9}}{3\text{ - x}}\text{ = }\frac{3(x\text{ - 3) }}{-x\text{ + 3}}\text{ = }\frac{3(x\text{ - 3)}}{-(x\text{ - 3) }}\text{ = - 3} \end{gathered}[/tex]
Step 2.
There are not restricted values because because it's possible to simplify the expression and there is not a denominator.
