If you used that 9-12V supply, you have nowhere near enough voltage. The minimum is +-10V so you need 20V across the rails. MINIMUM!
I put 25volts across the rails to as high as 30volts with no response .Isn't 25v that the same as +12.5 and -12.5 and 30v the same as -15 and +15 ..This is whats confusing me, there should be enough supplied voltage.
You still need a valid circuit and the starting point is a simple voltage follower. If that doesn't work, nothing will. That you have two independent sources tied together make things easy. You actually have a 'ground' to measure from.
Since you can adjust the + pin input voltage, you should be able to see the output change. Relative to ground, it doesn't need to change very much. You could even use a 1.5V battery. If you put +1.5V at the + input pin, you should get 1.5V on the output. Both measured relative to 'ground'. Turn the battery around and you should get -1.5V at the output. Whatever the voltage is on the + input pin, you should get the same on the output.