Question 718515
x = starting number of boxes


x + 7
------ = 22 {half of all boxes is 22}
2


x + 7 = 44 {multiplied each side by 2}
x = 37 {subtracted 7 from each side}


She started with 37 boxes
<br>For more help from me, visit: <a href = "http://www.algebrahouse.com/" target = "_blank">www.algebrahouse.com</a><br><br>