One Stereo Channel louder than the other

I’m a relative newcomer to Audacity, and everything seems to be going fine. Apart from one issue where I have recorded a vinyl track where the vocals and the backing track are split across the stereo channels. When I play it back the vocal sound is far more prolific than the backing track. Any ideas on how I could resolve this. I toyed with the idea of recording it in mono. But I thought I’d try here first.

Adjust the Balance control (marked with L and R) on the left hand end of the track in audacity?