You have two equations here:

1. $x + y - 2$
2. $x + y = 5$

It looks like the first equation is incomplete. If you're trying to express something in terms of $x$ and $y$, could you please clarify? Alternatively, if the first equation is meant to be a part of the system, we can proceed by solving the system of two equations with the second equation alone.

If you meant to solve the system of equations, I can help with that too. Just let me know!

Would you like to clarify the first equation or proceed with solving the system?