<h2>Steps:</h2>
So to solve for a variable, we must isolate such variable onto 1 side of the equation. In this case, we must isolate the x variable. Firstly, subtract both sides by Fy:
![Dx=M-Fy](https://tex.z-dn.net/?f=Dx%3DM-Fy)
Next, divide both sides by D:
![x=\frac{M-Fy}{D}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7BM-Fy%7D%7BD%7D)
<h2>Answer:</h2>
<u>Your final answer is
</u>
I believe it would be 360 students.
I would say A and D for theme 1 and B and C for theme 2.