Question

Hello I don’t need no explanation or words just the letter thank you so much!Which step has a mistake?

Answer 1

Simplify:

$\frac{x}{z+3}\div\frac{x-2}{x+3}$

Convert the division of fractions into a product with the reciprocal of the denominator:

$\frac{x}{z+3}\times\frac{x+3}{x-2}$

Now simplify x + 3 in both the numerator and denominator

$\frac{x}{x-2}$

Steps 3 and 4 are wrong because the variable x disappeared and it cannot be done unless they were simplified or they are substituted by a certain value.