2-2

I’m not sure what you mean by “2-2.” Here are two possibilities:

• If you mean the arithmetic 2 minus 2: 2 - 2 = 0.
• If you mean “Problem 2-2” from a textbook or assignment: please paste the full problem statement (or a screenshot). Then I can walk you through a step-by-step solution.

If you can share the subject (e.g., algebra, calculus, statistics) and the exact text, I’ll tailor the explanation and steps for you.