Let 'x' represent the total boxes Kendal bought.
She decides to keep two boxes for herself, the remaining boxes will be
[tex]x-2[/tex]
Each box contains 12 cookies, the expression will then result into
[tex]12(x-2)[/tex]
She brings 60 cookies to the party,
Hence, the equation to find the number of boxes 'x' will be
[tex]\begin{gathered} 12(x-2)=60 \\ 12x-24=60 \end{gathered}[/tex]
Therefore, the correct answer is Option 3.
