Good morning, Jimi, Jim, and Janis;
First off, which one are you? And, are we participating in a seance?
Next, Chris' assessment is correct. You have a simple optical problem, perhaps caused by a mechanical difficulty. Normally when you look into the viewfinder port, you will see the selected lens "f" number displayed in the small rectangular port in the center at the bottom of the viewfinder screen. This is a small optical system that is looking down at the top of the lens where the numbers of the aperture ring on the lens are shown. This is not an electrical problem. You should be able to see the aperture setting on the lens even when there is not a battery in the bottom of the Minolta X-700, and there is a lens cap on the front of the lens.
If you take off the lens and look up under the front of the pentaprism housing right above the top center of the lens mounting flange where the RED dot is located, you should be able to see the little rectangular window that looks down onto the lens aperture setting number. You should be able to see back through the pentaprism housing and out the back of the viewfinder port through this little optical system. If truly you cannot see anything either way, then you have something blocking the view, something is misaligned, or something is missing. Probably the cure will involve taking off the top of the X-700 and the pentaprism housing. See your X-700 Service Manual for this procedure.
Again, this is not an electrical problem.
Enjoy;
Ralph; Latte Land, Washington