Hi,
Work:

1. Move expression 1/4x to the left side and change its sign, also move constant -6 to the right side and change its sign. Now you equation looks like this:

2. Write all numerators above the least common denominator 12x.

3. Calculate the difference between 1/2 and 6.

4. Simplify equation using cross multiplication.

5. Switch the sides of equation.

6. Divide both sides of equation by -132.

7. Results:

Hope this helps.
If you have any questions about the answer comment below. Thank you!
r3t40