How to move an equation in a diagram in iWork Numbers?

I have a diagram in macOS Numbers 12.2.1 with two trendlines where I also inserted the equation for each trendline. The problem is that those two equations are on top of each other and I can't find a way to move them: Clicking on them shows that they are selected: and I can change e.g. font size when I am in this "mode", but I am unable to move them. If I click, hold and drag I just move the everything, both equations and the actual diagram. No difference if I click and drag the number or the "handles" (the empty circles) Doubleclicking does nothing. **How do I move the equations?** I want them separated, preferably close to the their corresponding trend line. ---- **Update 1:** Tried removing and re-inserting the trendlines, but the result was the same.