Verify the Equation: Is (3-x)/(-x+3) = 0 Correct?

Question

Determine if the simplification below is correct:

$\frac{3-x}{-x+3}=0$

00:00 Determine if the reduction is correct

00:03 We'll use the substitution law so the denominator matches the numerator

00:15 We'll reduce what we can, when reducing the entire fraction 1 always remains

00:26 Let's compare the expressions

00:32 And this is the solution to the question

$\frac{z-x}{-x+z}=1$

Incorrect