Just to be clear, when you say equalizing channels do you mean adjusting the level of one to be more in line with the other? (As opposed to equalization performed on specific frequencies.)
If so, to the left of the track there is a box which shows the name of the imported track, along with volume and pan sliders, mute and solo buttons.
Click on the black triangle next to the name and in the drop down menu choose 'split stereo track'. Then you can perform tasks such as 'amplify' on each channel separately.
When satisfied choose 'make stereo track' from the same menu.