Number of cookies grandma baked = 96
Number of grandchildren = 8
As cookies were divided equally so each one gets =
cookies.
As Cindy gets 'c' cookies less, her equation becomes = 12-c
Cindy receives
cookies.
As 'c' is not given, so its put like this - Everyone except Cindy gets 12 cookies and Cindy gets 'c' less than everyone.