Calculate in delphi program?

Question

Delphi

I studied the guys for a long time and I don’t remember how this is all solved, so I ask for help, you need to calculate as I understand it in the delphi program,
and the task is so funny: D

Answer 1

And without any delphi and pascals, can you solve the given system of equations?
You need to understand what you want to solve.

Answer 2

It doesn't happen that they come and say "in 4 hours you have to calculate this, only in Delphi". So you don't need to calculate anything.