The first step for solving this problem is to determine the defined range. This means that you need to find all values of w that would make the denominator equal to 0.
w = 0
To find the defined range,, exclude the restricted values.

, w ≠ 0
Reduce the second fraction with 3.

=

Use cross multiplication to simplify the equation.
8 = w
Switch the sides of the equation.
w = 8, w ≠ 0
Check to see if the solution is in the defined range.
w = 8
This means that the correct answer to your question is w = 8.
Let me know if you have any further questions.
:)