One wheel turning the other way

I’m new to programming with RobotC and learned through school. We had to program our robot to complete a few turns but one of the wheels on my robot is turning the opposite direction from the other. I’ve tried putting negatives and positives in front of the speed in my code, and have also put a reverse command in the pragmacode. None of this seems to be working and I have a project due tomorrow. Please help!

Please do not create multiple posts for the same thing