Sure! Here's a simple equation involving an irrational sum:
Let \( x = \sqrt{2} \) and \( y = 2 \).
Now, consider the sum:
\[ S = x + y = \sqrt{2} + 2 \]
The result \( S \) is an irrational number because the sum of a rational number (2) and an irrational number (\(\sqrt{2}\)) is always irrational.
So, the problem is:
What is the value of \( S \) if \( S = \sqrt{2} + 2 \)?