Kendal bought x boxes of cookies to bring to a party. Each box contains 20 cookies. She decided to keep 3 boxes for herself. She brings 120 cookies
to the party. Which linear equation is correctly written and evaluated to
find the number of boxes, x, Kendal bought?
11
20 X-60=120
21
3x - 60 - 120
20X-6060 = 120 + 60
3X-60 +60 - 120 60
20 X 180
3x180
(20 X/20180/20
(3X)/3 = 180/3
X: 9
20 X+60 = 120
X 60
60X-20 = 120
3)
4)
20X-60+ 60 - 120 - 60
60 X - 20+ 20 = 120.20
20x60
60 X= 140
(20 XJ/20 = 180/20
(60X)/ 60 = 140/60
X-3
X = 2.3