Question: Intsolve question integral equation

Hi there, I am a new user of Maple. I am trying to use intsolve for a course project requiring solving an integral equation. I saw Maple has the intsolve function, then I bought it. However, it didn't seem to work for me.

I typed s(x) and r(y) in and try to solve this problem.

 

 

 

It took 20 minutes; it's still evaluating... what should I do?

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