Answer:
VX=20
Explanation:
So we know that W is on VX. It doesn't matter where W is, but the two segments must equate to VX. In other words:

We know that VX is 4x, VW is 3x, and WX is 5. Substitute:

Solve for x. Subtract 3x from both sides.

So, the value of x is 5.
To determine VX, substitute 5 for x:


Multiply:

And we're done!