Hello there, and thank you for posting your question here on brainly.
If I'm reading it right, we need to make an equation using the one shown, x - 2.
We can put x - 2 = -5 because if x = -3 then we can do -3 - 2 = -5.
x - 2 = -5 is the final answer.
Hope this helped!! ☺♥