Respuesta :

caylus
Hello,
Adding the 2 equations,
x+y+x-y=k+k ==>2x=2k==>x=k
if x=k, y=k-k=0
solution is (k,0)

Answer:

(k,0)

Step-by-step explanation:

[tex]x+y=k[/tex]

[tex]x-y=k[/tex]

To solve for x  and y we add both equations

[tex]x+y=k[/tex]

[tex]x-y=k[/tex]

---------------------------

[tex]2x=2k[/tex]

Divide both sides by 2

[tex]x=k[/tex]

Now plug in k for x and find out y

[tex]x+y=k[/tex]

[tex]k+y=k[/tex]

Subtract k on both sides

[tex]y=0[/tex]

Ordered pair is (x,y) that is (k,0)

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