-2k=13 k+m=8

To solve the first equation, we need to isolate the variable "k". We can do this by dividing both sides of the equation by -2:

-2k/-2 = 13/-2

This simplifies to:

k = -6.5

Now, let's use this value of k to solve the second equation:

k + m = 8

Substituting -6.5 for k:

-6.5 + m = 8

To isolate the variable "m", we can add 6.5 to both sides of the equation:

-6.5 + 6.5 + m = 8 + 6.5

This simplifies to:

m = 14.5

So the solutions to the system of equations are k = -6.5 and m = 14.5.