[tex]\huge\boxed{28=k-12}[/tex]
Represent "[tex]28[/tex] is". [tex]28=[/tex]
Use subtraction to represent "[tex]12[/tex] less than [tex]k[/tex]". [tex]k-12[/tex]
Put the two parts together. [tex]\boxed{28=k-12}[/tex]
28=k-12
28+12=k
Since 28 is 12 less than k, it means k is 12 greater than 28. So, you could write in either of those equations. Therefore, the answer for this problem is 28=k-12 or 28+12=k.