Relax

Respuesta :

Answer:

k=2

Step-by-step explanation:

18 + (2) = 20

Answer:

[tex]k=2[/tex]

Step-by-step explanation:

[tex]18+k=20[/tex]

Subtract 18 from both sides:

[tex]18+k-18=20-18[/tex]

[tex]k=2[/tex]