Answer:
x = 7 boxes
Explanation:
Total boxes of cookies = x
Cookies per box = 12
Total cookies = 12x
Boxes kept away = 2
Cookies in 2 boxes = 2 * 12 = 24
Cookies brought to the party = 60
Total cookies = Cookies in 2 boxes + Cookies brought to the party
12x = 24 + 60
12x = 84
Divide both sides by 12
x = 84 / 12
= 7
x = 7 boxes