-2k=13 k+m=8

To solve the first equation, you need to isolate the variable "k".

-2k = 13

To isolate k, divide both sides of the equation by -2.

(-2k) / -2 = 13 / -2

k = -6.5

So, the value of k is -6.5.

Now let's solve the second equation.

k + m = 8

Since you already found the value of k to be -6.5, you can substitute it into the equation:

-6.5 + m = 8

Now, solve for m.

m = 8 + 6.5

m = 14.5

So, the value of m is 14.5.