How to slove this loop error

I want to make this function call feedback system without unit-delay because all this system run by a one-step time. can you recommend this loop error without unit-delay block?

[Walter Roberson]

Is it continuous or discrete?

https://blogs.mathworks.com/simulink/2015/07/18/why-you-should-never-break-an-algebraic-loop-with-with-a-memory-block/