Capacitance help

[ncsuwx]

Here is the question

A(n) 2.00 µF capacitor is charged to 520 V and a 4.60 µF capacitor is charged to 570 V

What is the voltage for each capacitor if plates of opposite signs are connected?

Any help would be helpful. I have bene trying to get this and havent been able to all night. I only have one submission left to get the right answer soany suggestions would be greatly appreciated.

[ncsuwx]

The equation is C=Q/V. Just by pluggin in values does not work for me and i cant figure out what im supposed to do.

[ncsuwx]

I still cant figure it out. I have been trying and still cant get the right answer. I have an answer similiar for a question for 2.4uF and 880V and 4uF and 560V capacitors. The voltage is 20V for that one. I cant even get that answer