Problem while installing cuda toolkit in ubuntu 20.04

After following all the instructions in CUDA Toolkit 11.7 Downloads, the last instruction

sudo apt-get -y install cuda

doesn’t work for me.

Terminal shows this message:

dmitriy@dmitriy:~/git/drake$ sudo apt-get -y install cuda
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 cuda : Depends: cuda-11-7 (>= 11.7.0) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

PS: I have an NVIDIA Geforce 920MX card in my computer.

Any solution please?

a couple options are to start over with a clean OS load, making sure to meet the requirements of the CUDA version you want to install, or else chase the dependency down.