Below you can find the full step by step solution for you problem. We hope it will be very helpful for you and it will help you to understand the solving process.
If it's not what You are looking for, type in into the box below your own function and let us find the graph of it.
The graph of x+y=-5 represents a graph of a linear function.
On the given graph you can find all of the important points for function x+y=-5 (if they exist).