1987 honda accord lx brake lamp indicator bar is on lit up on dash car display

This is most likely one of three things.
1. Your emergency break is not fully disengaged ... Pull the break lever all the way up and release it a few times ... sometimes things just get a little stuck. If your car seems to be fighting against moving, it could be that the breaks themselves are actually stuck ... and you should bring it to a mechanic to have your breaks checked SOON -- before the heat from over-worked breaks causes your rotors to warp, or overheats your breaking system and costs you a lot to fix.
2. You could have a bad emergency-break sensor -- so your car thinks the e-break is on when it is not. If you replace the sensor, you should be fine.
3. I don't think that Hondas actually come with a sensor to tell you if the break lights themselves are out of order (at least in a car from 1987) but I might be wrong. Have someone step on the breaks for you and make sure all of your lights work. This is not likely to be the problem, but it is worth a look before you spend money to fix something that is not broken. (If you live alone, you can also use a large rock or brick to hold the pedal down so you can check the lights ... just make sure the car is off so the rock doesn't slip to the gas pedal and put you or your engine at risk.