The thermonuclear fusión that occurs in the sun is a process involving what?

In nuclear physics, nuclear fusion is a nuclear reaction in which two or more atomic nuclei come very close and then collide at a very high speed and join to form a new nucleus. During this process, matter is not conserved because some of the matter of the fusing nuclei is converted to photons (energy).

This is what i did 45-5=4040÷4=10so there are 10 white marbles but am not sure is just a question that am not sure